A month later, in the hot month of July, Shen Mingyu came to the Public Security Bureau of A City on time to report. The policewoman who received him took him to an office against the wall at the end of the corridor, and the policewoman said: "This is your office in the future, although it is a little small, but you have one room, only the leader has this treatment, you clean up a little, and then go to the forest bureau, he is waiting for you." Shen Mingyu walked into this office, there was not much space, there was a small window, he thought it should be nice to arrange it a little. After coming out of the office, he walked straight to the director's office. "Here, Xiao Shen, how do you feel?" "Forest Bureau, everything is fine." Shen Mingyu replied. "I'll tell you about your main job now, because there are not a few people in your profession in the country, and we are also a beginning here, your main purpose is to analyze the modus operandi in the case, the motive for the crime, the scene, the evidence, etc., so as to assist the police to find and eliminate the suspect, and finally successfully solve the case, but it is not over after the case is solved, you also need to analyze the psychological activities of the criminals, don't forget that our purpose is to analyze human nature, to give people a warning role, you have to do a good job, if you don't understand, you can also consult other colleagues, I know that your memory is much better than that of ordinary people, and I hope you can play to your strengths. "I'll do my best." Shen Mingyu said confidently.

July is the hottest time of the year. It was an unusually hot day, with a hint of hot air in the air, and a burst of heat rising from the ground that had just rained. In one house, a woman is holding a stick-like object and striking a man on the back of the head, once, twice...... Gradually, the woman stopped moving her hands, and the back of the man's head was already sunken in, and he had already stopped breathing. The woman gasped for breath in panic, as if she realized what she had done, and collapsed to the ground. After a moment of calm, she realized that she needed to do something, so she put on gloves and turned the house into a mess, putting important belongings in a bag, then taking them with her when she went out, hiding them in a hidden place, and then going to get them back afterwards, creating the illusion of burglary. The woman did this because she lived in a remote area, an old neighborhood with very few surveillance cameras, and a lot of loitering people around the community, which could easily shift the suspicion of the police to the burglary. "The murder weapon, what to do with the murder weapon...... That's right. The woman muttered, and the woman picked up a frozen carp from the ground, which was still stained with the man's blood. The woman thought of a solution, she took out the big iron pot that she didn't use all the year round, and prepared to stew the carp into carp soup, she thought, as long as the murder weapon was gone, the police would not suspect her. But now the fish was so hard that she kept cutting it with a knife, and the woman had to put the whole fish in the pot and cook it. The woman cleaned the frozen carp, added water to the pot and boiled it, and then she only had to go out to buy groceries, and then come back and pretend to find the scene, and when she was the first witness, her plan was seamless. But she didn't expect that she had made a very fatal mistake because she panicked.

Eight years ago, men and women met because of a party, the woman was outgoing and cheerful, while the man was introverted and shy, quiet. Several young people swayed their youth wantonly in the KTV, while the men sat quietly on the side, swaying slightly from time to time with the singing voices of other friends. Originally, the man didn't want to participate in this party, he was already a little afraid of society, and most of the people who participated didn't know him, but for the sake of his friend's face, the man decided to go and see it. After singing a song, the woman also noticed the man in the corner, and she walked over and asked, "Why don't you sit here alone and don't sing two songs?" In the face of the woman's question, the man didn't seem to come back to his senses, and after a while he slowly replied, "I don't sing well...... You can just sing, and I'll set the mood for you. Only then did he look up and see a face with bright eyes and bright teeth, and for the first time in the man's heart, he had a strong feeling in his heart, from birth to graduation from college, he had always been single in the womb, and he rarely had friends of the opposite sex because of his personality. The woman also seemed to be very interested in men, and she felt that this quiet man was the opposite of herself, and he looked white. After the party, the two exchanged contact information without a contract, and behind it, two fiery hearts were constantly beating. A man has never experienced love, he expresses his love for a woman in his own way, buys her breakfast, sends her home, and takes her to the doctor, it is these seemingly ordinary things that deeply move women. One winter 7 years ago, they expressed their hearts to each other and formalized their relationship, and at the beginning, they were as sweet as all lovers who fell in love, going to play together, eating together, traveling together, and their friends were very envious of their love, and the most asked sentence was "why aren't you married". Finally, 3 years after the relationship was confirmed, they got married, and after the marriage, they bought a very small house, and the two of them worked together for the mortgage, and in the eyes of outsiders, they were a model couple. However, repeating the same life every day, no matter how loving the couple will also get tired of it, this time it is a man. A man's love for a woman is getting weaker and weaker, while a woman is becoming more and more inseparable from a man, and she tries her best to show herself in front of him every day, but the man is becoming more and more indifferent, because he is used to it and is tired of it. On this day, a new female colleague came to the unit, who happened to sit next to the man, and the man felt very good at the first glance when he saw the female colleague, plus the female colleague was also lively and cute and talkative, and the seat was also next to the man, so they naturally became acquainted. Men feel very physically and mentally exhausted every time they think of living a boring life after coming home from work, and they feel very physically and mentally exhausted when they think of facing women. So the man began to go home late, and when the woman asked him, he made excuses and said that he had to socialize, work overtime and other reasons, and the woman believed in the man very much, and did not ask too many questions, but just reminded the man to pay attention to his body. The woman's tolerance was regarded as connivance by the man, and he began to intensify, from returning late to not returning all night to not returning home for several days. The woman understands the truth, but she chooses to forgive and believe again and again until this day. It was a weekend, but the woman had to work overtime because of work, and the man didn't come back until the morning because he didn't return all night last night. At 5 o'clock in the afternoon, the woman came home after finishing her work, and found the man lying on the sofa, because the relationship has been tense recently, the woman wanted to ease the relationship between the two, just when she thought that there was a carp in the refrigerator, usually the man's favorite food is carp, and the man has not eaten at home for a long time, so the woman asked: "Husband, let's eat at home today, there is carp in the refrigerator, I'll make you a braised carp, you haven't eaten it for a long time." The woman's enthusiasm turned out to be only a cold response from the man, "No, you can eat it yourself, I still have a party in the evening." The woman felt very aggrieved and said, "Don't you even have time to eat with me......" The man was still the same indifferent, "I said that there is a party, don't you bother." The woman finally couldn't help but explode, she shouted: "I know where you're going, go outside to see girls, don't think I don't understand anything......" The man couldn't help but scream: "It's what's wrong, who can stand living this kind of life every day, it's annoying to see you every day, and I thought it was the same as before." When a woman hears a man's words, she is first angry, then desperate, and finally all that remains is hatred. Their former vows and sweet words have now come to naught. "The days are long and the days are endless, and this hatred is endless", these two poems are the best summary of their present.

The woman gradually lost her mind, picked up the frozen fish and smashed it down on the man with his back to her. One, two, three, each of which represents the hatred of the woman, I don't know how many times I smashed, the man has not moved, and the woman has no strength, so she stopped. The woman disguised the scene as a burglary and then killed someone, put the fish in a pot to stew, and went out to buy groceries. When she came to the vegetable market, she greeted the vendors as always, because in their eyes, men and women were model couples in the eyes of others. When the woman returned home after shopping for groceries, she thought she had handled it seamlessly, so she called the police.

Shen Mingyu was eating in the office while reading the information, and the dishes in the canteen today were very much in line with his taste, and Shen Mingyu also felt for the first time that the food in the canteen was much better than outside. Suddenly, he heard the operator hurriedly running to find the captain of the criminal police, "There is a criminal case in Area F, notify all departments to cooperate and prepare to go to the scene." This loud voice came from the captain of the criminal police. The captain of the criminal police, Han Sicheng, 33 years old, became the captain of the criminal police at a young age because he repeatedly solved cases and had excellent work ability. Han Sicheng came to Shen Mingyu's office and said, "Xiao Shen, you will set off with us later, this is your first time on the scene, don't be nervous, just do what you need to do when the time comes." Shen Mingyu's heart couldn't help but get excited, this was his first case, and he had to behave well.

About an hour later, Shen Mingyu and his colleagues arrived at the scene, and the forensic doctor and other personnel were already busy. This is an old community, there are almost no surveillance cameras around, and the few surveillances that exist have not captured any useful information, and the people who live here are basically old residents who have lived for a long time and young people who have just graduated and worked hard to rent a house, and there are almost no new residents who have moved in. The forensic doctor gave a brief autopsy report at the scene: name Bai Zipei, male, age 32 years old, trauma outside the body, the body appeared stiff, and it was inferred that the time of death was within 2-3 hours, and the cause of death was hit by a blunt object-like object in the back of the head, and there were dented marks on the back of the head. Han Sicheng took the autopsy report to Shen Mingyu, and the two studied it together. The first time Shen Mingyu came to the scene of the crime, the first time he saw the real body, he still showed a little discomfort, usually only saw such scenes in class or TV movies, and it was the first time he really had actual contact. Han Sicheng saw Shen Mingyu's discomfort and comforted: "It's okay, I was more exaggerated than you when I first appeared on the scene, and I will get used to it slowly, and then we have to start analyzing." Han Sicheng's words made Shen Mingyu stop thinking about it, and immediately started to prepare to start work, he looked around, put on gloves, and began to investigate the scene.

This is a two-bedroom room, not very big, about 70 square meters, the decoration style is very simple, the scene of the crime is in the living room, the victim fell on the sofa, there are obvious traces of trauma on the back of the head, there are also some blood stains on the sofa, the front of the living room is the kitchen, the pot on the stove is still stewed with fish soup, and the fire has been turned off by other colleagues in advance. Shen Mingyu was thoughtful while walking, and he was actually a little excited at the moment. He has been fond of suspense and reasoning since he was a child, he started reading Conan at the age of 6, and he also read a lot of different mystery novels when he was a student, he has fantasized more than once that he is a great detective, and he can find the flaws of suspects on the spot and correct them, and now he is really at the scene of the crime, but he is not a detective in the novel, but a crime profiler.

Shen Mingyu relied on his memory to write down the layout and objects of the scene, and he turned his head to discuss the case with Han Sicheng: "I just turned around and found that there was no trace of a fight at the scene, that is, in the living room, but the whole house was turned into a mess, and the property was lost, is it possible that outsiders wanted to come in and steal, and just found the man sleeping on the sofa, and the man was awakened, so the thief decided to kill the man without doing anything?" Han Sicheng gave a negative: "I don't feel like it, and it's a little strange, but I can't say what is strange now, and now the murder weapon is also being searched, and it cannot be ruled out that the murderer took the murder weapon away after killing someone." When Shen Mingyu heard the word "strange", his heart was touched, because when he had just investigated the scene of the crime, he also felt that there was something strange, and at this time he suddenly realized what was strange. He began to analyze to his colleagues: "I know what's strange, let's assume that the murderer is a thief, then his character should be reckless, why, first of all, few people will choose to burglary during the day, because there is enough light during the day, and they will be found if they are not careful, and secondly, few people will commit crimes on weekends, because most people are resting on weekends, and they will be found if they are a little careless, since the thief chooses to commit crimes during the day on weekends, it shows that he is a very reckless person, Because the man is at home, he doesn't know, it means that he didn't step on the point or prepare in advance, it was completely improvised, so what would happen to such a reckless person, he must be extravagant, leaving many footprints and traces, the most important point is that if he wakes up the man, the man will definitely resist, he can't not leave traces of fighting, if he doesn't wake up the man, he doesn't need to kill a sleeping person, after all, he is just here to steal. However, there were no similar footprints, marks, dirt, etc., and no signs of a fight were found at the scene, so I think the possibility of burglary by thieves can be ruled out. Han Sicheng took the lead in praising Shen Mingyu, "You are right, I also understand that strange point, that is, what you said, and what else has been analyzed, you continue." Shen Mingyu took over the conversation and continued: "Now we have ruled out the possibility of a thief burglary and murder after being discovered, because we have analyzed that he is a reckless person, it is impossible for him not to leave traces, and it is impossible for him to kill people and have time to take the murder weapon away, the murder weapon should still be left at the scene of the crime, but it has not been found yet." Han Sicheng nodded, as if affirming Shen Mingyu's thoughts, so he beckoned his subordinates to continue to search for the whereabouts of the murder weapon. At this time, Shen Mingyu's brain was also thinking about who the murderer was and where he hid the murder weapon. Han Sicheng pulled Shen Mingyu aside and said to him: "Let's go and ask the people around us about today's situation first, you can also come along, maybe there are any useful clues." Shen Mingyu followed Han Sicheng to the security booth at the gate first, and Han Sicheng asked: "Uncle, at 5 o'clock this afternoon, are there any suspicious people entering and leaving the community, or have you seen anything suspicious?" "The security guard is about 60 years old, and he is playing soul (a social software) on his mobile phone, chatting sweetly with the girls inside, and Shen Mingyu thinks that this uncle BYD is quite trendy. The uncle replied impatiently: "How do I know, I just woke up not long ago, and there is no need to register for this community to enter and exit casually, so many people come in and out every day, who knows which one is suspicious." Han Sicheng was bored with himself, and didn't ask any more, they came to the neighbor's house on the first floor, according to the residents on the first floor, the family was the same as usual, they came home from work at five or six o'clock, and they didn't see them quarreling or anything, and the people around them regarded them as a model couple, but this morning he went out to walk the dog and saw the male owner go upstairs and go home, about half past seven. They asked the residents around the area, but they received no useful information, and almost all of them praised them as a model couple. Shen Mingyu said: "Since they are a model couple, then let's go and ask his wife." Han Sicheng agreed, because his wife had been crying just now, and her mood was very unstable, and she should have stabilized a little now. His wife's name is Lin Meng, 32 years old, an accountant of a company, who was sitting in a police car sobbing at this time, and a female policewoman beside her was constantly comforting her. "Miss Lin, hello, I deeply regret your husband's matter, but in order to find the real culprit as soon as possible, we want to ask you a few questions, do you think it's okay?" Han Sicheng asked softly. "Just ask, I'm fine." Lin Meng replied slowly. "Tell me what you did today." "Okay, I need to work overtime today because of the company's temporary things, I was about to go out when I saw my husband come back, he said to go to the party, play late, and then a few people went directly outside for the night, he came back and lay on the sofa to sleep, I said hello to him, and went out, since then I have been in the company, until about 5 o'clock, I came home from work, passed by the vegetable market, by the way bought tonight's vegetables, only to come back and saw my husband fall there, I called the police......" "I know, Did you say that there was someone to prove in the company during the day? And go grocery shopping too. Shen Mingyu asked.

"Are you doubting me? Still not convinced. Lin Meng replied resentfully. No, no, we're just doing it routinely, so please don't get too nervous. "Okay, there are two colleagues in the company who can help me testify, we have always been together, if you want to go to the vegetable market, they should all have an impression, because there is only one vegetable market nearby, I basically go to it every day, I also greeted them today, and the vegetables I bought today are tofu and radish and eggs, you can go and ask them." "Okay, thank you for your cooperation, I have another question, how is the relationship between you and your husband, the neighbors say that you are a model couple." Han Sicheng asked. Lin Meng was obviously stunned for a moment, a little panicked, she obviously didn't expect to ask such a question. But Shen Mingyu saw it in his eyes and silently wrote it down. Lin Meng replied: "We have known each other for 8 years, and we have been married for several years, and our relationship has been very stable. "Cooking? When Shen Mingyu heard this word, he thought of the somewhat confused places he had seen at the scene of the crime before, and his mind spun rapidly, thinking about each frame. By the way, that pot of fish, since Lin Meng cooked, who cooked the fish, Bai Zipei? Shen Mingyu said, "Miss Lin, did you cook the fish in that pot?" Lin Meng seemed very calm at this time, she had already thought of a way to deal with it, "No, it should be cooked by my husband, because when he eats at home tonight, his favorite food is carp, and only he can make it." Hearing Lin Meng's answer, Shen Mingyu was thoughtful, and he pulled Han Sicheng aside, "Let's go back to the scene, I seem to have found something." Han Sicheng was confused, so he had to follow him back to the scene.

Shen Mingyu walked straight to the pot of fish soup, because the fire had been turned off by his colleagues in advance, and now the pot of soup should be cold. Shen Mingyu picked up the spoon and fished it out of the soup, and as a result, he fished out a whole carp. Shen Mingyu couldn't help but wonder, isn't Bai Zipei very good at making fish, how could he make such a mistake, he is a layman who cooks and knows that he has to scrape off the fish scales before making fish, otherwise how to eat it, but the fish in the pot is covered with dense fish scales. Then there is only one answer, this fish is not boiled by Bai Zipei at all. At this time, the police officers investigating the scene reported to Han Sicheng that some pale yellow diamond-shaped hard objects were found in the cracks of the deceased's hair, and there were faint blood stains on them. Han Sicheng was about to ask his subordinates to send these objects back to the bureau for testing, Shen Mingyu came over, and he found that these things were very similar to the fish scales cooked in the pot, so he compared the two and found that these things were fish scales. Han Sicheng also suddenly realized that the murder weapon was this fish! Using fish to kill people, Shen Mingyu saw it for the first time, and he couldn't help but think of Gao Qisheng, the frozen fish god of war in the hit TV series "Hurricane" some time ago. Shen Mingyu strung everything together, and he analyzed to everyone: "I have probably figured it out, Bai Zipei was stoned to death by the suspect from behind with a fish for some reason, it should be a frozen fish, the frozen fish is very hard, like a hammer, which is also in line with the fact that the victim was hit with a blunt object, and then the suspect put the fish in the pot to cook in order to destroy the evidence, but the suspect may not know or may not be able to do it at that time, he didn't clean up the fish scales, he thought that the fish scales would melt if he kept stewing, even if he couldn't melt, That will also be boiled and changed, but it backfired, the colleagues who searched the scene were afraid that something would catch fire if something was boiling in the pot, so they turned off the fire, in fact, the fish scales were not cooked at all, I deduced that this person should be a passion killing, because after killing people, he didn't have time to find that there were still fish scales in the hair of the corpse, but he thought of pretending to be a burglary and murder, so I think this suspect is a thoughtful person, but because it is a passion killing, it is inevitable to panic. Everyone felt that it made sense, and Han Sicheng quietly asked Shen Mingyu, "Do you suspect that it is Lin Meng?" Shen Mingyu nodded, but he had not yet found key evidence, and he could not draw a final conclusion. Shen Mingyu continued to think, since he committed a crime, he would inevitably leave evidence, and there were not so many perfect crimes in the world. Shen Mingyu suggested that the fish scales found on the deceased's hair be tested first to see what results could be obtained, but Han Sicheng was suffering from no evidence, so he could only collect the team and go back to wait for the test results.

After a while, the test results came out, and the fish scales scattered in the hair just matched the fish scales in the pot, all from the same fish, and several fingerprints and a little blood stains were also found on the fish scales. At the same time, a member of the team reported the situation to Han Sicheng, saying that a bag of property was found in the flower garden behind the building in the community where the crime occurred, which contained cash, jewelry and other items, and after testing, Lin Meng's fingerprints were found on it. According to the insider, it was a stray cat who came out of the flower garden with this bag of things in his mouth, and he thought it was very strange, so he went up to check it, and found the bag of things, so he called the police. Han Sicheng decided to interrogate Lin Meng and gave the right to ask questions to Shen Mingyu.

In the interrogation room, Lin Meng sat calmly in the chair, she seemed to know, but she was terrifyingly calm. Shen Mingyu couldn't help but feel a little nervous in the face of this calm woman, and he began to ask: "Ms. Lin, can you explain that you said before that you didn't touch a fish, and your husband did it, but why did we find fish scales and your fingerprints in your husband's hair?" Lin Meng was silent. There is also a bag found in the flower garden that contains your family's belongings and jewelry, there is nothing else on it except your fingerprints, it should be that you left a fishy smell when you handled the fish, the smell got on the bag, and the cat smelled it and took it out, can you explain this bag of things. Lin Meng obviously began to waver, and the expression on her face was also panicked, but she still refused to speak.

"Your motive, I may already know, it should be a matter between your husband and wife, because when I mentioned that the neighbor said that you are a model loving couple, you were obviously stunned for a moment, and then your eyes were flustered, at that time I guessed that there must be something wrong between your husband and wife, if I guessed correctly, your motive is also because of this." After Lin Meng heard this, she finally couldn't help it, she cried and told her story (mentioned earlier), she thought to ease the tense atmosphere today, but her husband still treated her coldly as always, and even admitted the fact of cheating, she originally wanted to take her husband's favorite carp out to thaw, but hatred prevailed, which eventually led to this tragedy. As for falsifying the scene and destroying the evidence, it was all a spur-of-the-moment idea, and in the panic, something went wrong in the end. Lin Meng finished narrating the whole thing, she was already in tears, she didn't know that the man she had always loved so much would slowly become like this, and they stepped on the cliff step by step without turning back. Lin dreamed of all these years, remembered how good they used to be, remembered all the previous experiences, and remembered the day 7 years ago, but she couldn't go back, she slowly lowered her head, lay on the table and cried bitterly, explaining the whole process, and after speaking, everyone in the interrogation room was silent......

Shen Mingyu walked outside, his first job was over, and all that was left was to complete the report. He walked to the door of the Public Security Bureau, and he didn't smoke, but at this time he slowly lit a cigarette and looked up at the sky, "The moon is so round tonight." He sighed, he thought of his girlfriend, how could they not be like Bai Zipei and Lin Meng, there are some time nodes, some things are really missed, and they can't go back. Thinking of this, he silently put away the mobile phone he had just taken out and was about to call, he only hoped that everything was okay for the two of them, and that was enough. Shen Mingyu finished smoking, turned around and walked into the bureau, leaving only a lonely back and a bright moonlight.

Postscript: The carp is a very good thing, it can be eaten and used to kill, depending on your own ideas. In reality, there are very few couples who can go to the end, so two people should cherish this emotion, many contradictions will only get bigger and bigger the hole the more they drag on, and there are contradictions to be raised in time to solve. People are selfish and want to keep the things they cherish the most to enjoy alone, but sometimes it backfires. Desire is complex but also simple, sometimes the satisfaction of desire is just a day or a night of companionship, and sometimes it is endless greed. The husband's intensification and the wife's repeated compromises led to tragedy. People will always be lonely in the end, no one can accompany you through the whole journey, but there will always be someone who will accompany you in the process of your journey, cherish the present, cherish the present, is the best.