City C is a relatively comfortable city, Liu Yi rented a slightly simple house outside the Fourth Ring Road, buried himself in writing all day, and his only pastime was to cool off on the balcony of the rental house.

"Dangdang!" An unrhythmic knock on the door broke the silence of the room.

Liu Yi scratched his head and walked slowly to the door, the knocking continued. He glanced at the cat's eyes, shook his head, raised his hand to open the door and asked impatiently, "Why are you again?" In front of Liu Yi was a middle-aged man with unkempt hair and a yellow and thin face, although he was neatly dressed, but he always felt particularly awkward when he looked at it from nowhere.

The man didn't dare to look directly at Liu Yi, and suddenly raised his head: "Excuse me, your house is leaking, eh, I, I mean, or I heard some strange sound, I ...... My house is actually blocked by water, what about yours? Liu Yi saw that he was incoherent and talking nonsense.

"You're here five times a day! I said it all, how can my house leak if the water in your house is blocked. Liu Yi closed the door impatiently.

"It's sick!"

Liu Yi curiously glanced at the cat's eye again, and the middle-aged man outside the door looked a little lost. But he didn't turn around and leave immediately, his left hand was just about to rise and fall again, and his right hand kept covering his ears, and his face was distorted, as if he was in pain.

The man lingered in front of Liu's house for more than 20 minutes before leaving.

Night is a perfect time to write, but every eleven o'clock or so, the sound of tinkling and hurried footsteps can be heard upstairs. A while ago, I could still hear a woman's voice, the old house was poorly soundproofed, and Liu Yi was also very helpless.

Liu lit a cigarette, walked to the balcony and scolded, neurotic.

This old house only has the fifth floor, Liu Yi lives on the fourth floor, there is only one family on the fifth floor, and the other family was also bought by this middle-aged man, and I heard that it was changed into a combined house.

The smoke from the cigarette in Liu's hand was like a wisp of walking mist, slowly drifting upstairs.

"Ahh Who? Don't, don't! ”

A pungent smell mingled with puffs of white smoke.

"You deserve it, you deserve it, now I'll see how you pretend! What the? Will you always listen to me? Stinky bitch, don't lie to me! The middle-aged man looked in the mirror as if talking to himself, and his hands kept scratching something.

"Huh? Is this me? Who are you? The middle-aged man's expression changed, and he immediately changed as if he were a person. The right hand stroked himself in the mirror, and the left hand tightly grabbed the girl's underwear next to him and rubbed it on his face a few times, "You are still the best, my little baby." ”

Followed by a burst of arrogant laughter, the originally quiet toilet instantly became noisy, and even downstairs could be heard.

The dim light faded and the sound faded away.

In the early morning, the sun was shining, and the spring breeze squeezed in through the cracks in the windows. Liu Yi, who originally wanted to sleep until eleven o'clock, was woken up by a burst of footsteps.

"Don't let people sleep!"

Liu Yi walked out before putting on his slippers, and when he opened the door, he saw that there were many policemen standing in the corridor, and some neighbors with good deeds, and the cordon had sealed the staircase from the fourth floor to the fifth floor.

A strong smell of blood came from upstairs.

"Xiao Liu? Why are you here?" Liu Yi looked up, rubbed his eyes, and said with a smile: "Team Wang!" Why you? ”

"Isn't this early in the morning someone reported the crime! How? Didn't you hear the police car? The bearded, smoky, and serious-looking man in front of Liu Yi's eyes is Wang Jianguo, the leader of the serious crime team in the district, the guy who handles the case with a stuffy head, is almost forty years old, and he is not married.

He met Liu Yi because of a campus kidnapping case. After that, Liu Yi has been helping Wang Jianguo crack some cases, and the relationship is good. And Liu Yi also became a "special guest" of the police station.

"What's wrong?" Liu Yi asked curiously.

"Murder, the forensic doctor will come in a moment." Wang Jianguo put down this sentence and walked up the stairs quickly.

From the hallway, there was a lot of talk from the neighbors. Occasionally, you can hear "What happened to Professor Li?" "It shouldn't be! Professor Lee is such an upright person! "Some time ago, I watched him take a walk downstairs!"

"Why haven't you caught up?" Wang Jianguo leaned on the railing and called Liu Yi.

Liu Yi was stunned for a moment, put on his shoes, and ran over.

Liu Yi crossed the cordon and walked into the strange room on the fifth floor with Wang Jianguo. He shuddered suddenly, the room was so familiar to him, though he had never been to it before.

In addition to the smell of blood, there were other smells in the room. There are paintings on the walls, and the two rooms on the left and right are open, the room on the right seems to be the victim's painting studio, and the study on the left.

"Team Wang, do you smell it?" Liu Yi kept incitement with his hands, trying to gather this rare smell in front of his nose.

Wang Jianguo obviously didn't smell it, and kept looking around to see if there were any clues.

"Master, the identity of the deceased has been verified!" At this time, a flat-headed, thick-eyed, sturdy young man came out of the house.

"Say it! Xiao Xu! ”

Xu Wei, after graduating from the police academy, was assigned to Wang Jianguo's jurisdiction of the police station, and has been following Wang Jianguo, usually the two are known as master and apprentice, and Liu Yi was called brother and brother before, but a few times Liu Yi assisted in solving the case, stealing the limelight, and began to be a little jealous of his detective mind.

Xu Wei glanced at Liu Yi, "Why is he here?" ”

"Hurry up, less nonsense!"

"The deceased, Li Wenzhong, male, 52 years old, lived alone, was a professor at the University of the Arts near here, and had no criminal record. There was some ...... on site"

After Liu Yi heard this, he told Wang Jianguo about Li Wenzhong's frequent knocking on his door during this period of time.

Wang Jianguo dragged his chin and said, "It seems a little strange!" Xiao Xu, why don't you continue? ”

"Master, you better take a look at the dead first!" Xu Wei seemed a little timid when he said this. Wang Jianguo and Liu Yi slowly walked towards the toilet.

The scene in front of them instantly shocked the two, Li Wenzhong was naked, from the chest to the belly was cut open and sutured, his lower body was cut off, and he was thrown into the bathtub, and the blood on the ground filled the floor of the entire bathroom.

Li Wenzhong's internal organs were dug out and put on the ground, and they were neatly placed beside him, but his stomach was indeed bulging. His eyes widened as he stared straight at the door of the toilet, his mouth wide open, as if frightened.

The word "damn" was written in blood on the toilet mirror.

Liu Yi stepped forward, squatted down, looked at Li Wenzhong's body from head to toe, and carefully observed the internal organs on the ground.

"On the face of it, the victim did not fight the killer, and it is possible that the two knew each other. And the fatal wound was in the position of the chest, which penetrated directly into the heart. The murderer was quite patient, and after taking out the internal organs of the deceased, he sewed up the stomach again, and there was stuffing in the stomach, and the murderer should have put something in it. The blood flowing from the internal organs did not completely clot, and the time of death should have been between three in the morning and five in the morning today. "These are all on the surface.

"Xiao Xu, have you found the tools for committing the crime?" Wang Jianguo turned around and asked.

"There is no master, I have looked for it on the spot, no!"

"The murderer came to the door with the tools of the crime, just like the door-to-door work, and he definitely won't stay here! Judging by the word mirror, it is vendetta. Liu Yi stood up.

"You're his neighbor, and you didn't hear a sound last night?" Xu Wei seemed to doubt the authenticity of Liu Yi's account.

"I really slept to death." Liu Yi turned his head sharply and looked at the position of the toilet basin, which happened to be opposite the location of the toilet downstairs.

"Water leakage? Clogged sewers? Don't? ”

"What's wrong with Xiao Liu?" Wang Jianguo saw Liu Yi turn on the faucet, only to see that the water did not flow down quickly, but gradually filled the entire hand basin.

The water pipe was a plastic hose, and Liu Yi easily took it off, and a foul smell came to his face. Several of the petty detectives on the scene had vomited incessantly. The smell of blood masks the smell of the sewers.

"What is this?" Wang Jianguo asked.

Liu Yiqiang endured the stench, and in order not to destroy the scene, he walked to the corner of the toilet and shook it a few times. I saw that some minced meat had fallen inside, and there were a lot of maggots.

"Corpses?" Liu Yi put down the hose, squatted on the ground, retched a few times, and then fell into deep thought.

"Liu Yi, you speak! So many people are waiting for you here! Xu Wei was still in a hurry.

"Xiao Xu, it's okay! You go and check if there are any useful clues in the deceased's house. Although Xu Wei was a little unhappy, Liu Yi was robbed of the limelight, but his master spoke, so he had to stare at Liu Yi and leave the toilet.

"Xiao Liu, did you find anything?"

"Brother Wang, these corpses need to be examined, they shouldn't be victims!"

Wang Jianguo nodded.

"Who reported the crime?" Liu Yi then asked.

"It was Li Wenzhong himself, and the time to report the case was six o'clock this morning. It seems that the murderer should have used Li Wenzhong's phone to call the police, and the voice on the phone did not look like that of a person in his fifties. ”

"The informant is the murderer, and the murderer used Li Wenzhong's mobile phone to make a call, and you shouldn't have a way to find the murderer. The murderer stayed here for a while before calling the police, probably looking for something other than disposing of the body, or admiring the scene in front of him, to satisfy some kind of desire in his heart. ”

When Liu Yi entered the toilet, he also carefully observed the structure of the toilet and the items inside.

"This toilet has been renovated, and it should be considered big for this kind of old building. Judging from the toiletries in the toilet, the deceased should have been a very particular person! ”

"Exquisite?"

"That's right! It should be said that he is very good at taking care of himself! Socialize regularly. Liu Yi pointed to the skin care products and perfume behind him, and then walked to the deceased and continued: "But these skin care products still do not hide his old age. That's right! And these things. Liu Yi pointed to the two little girls' underwear and continued: "The victim has a pedophile. ”

"From the direction of the blood stains and the footprints on the blood stains, it can be seen that the victim may have been injected with drugs by the murderer at the moment he came out of the toilet. The victim's pupils were dilated, and the whites of his eyes were bloodshot, so he was probably overtired and frightened at the time of the crime. Wang Jianguo and the others followed Liu Yi's hand to look at every place he said.

Liu lit a cigarette, took a deep breath, waved his hand and said, "You can get it yourself!" I've got to go back to the codeword! ”

"You wait! Frightened? Doesn't this guy live alone? Who can scare him? Could it be the murderer? Wang Jianguo was looking around for something while observing the corpse.

"Brother Wang, it may be the murderer, or it may be himself, the victim is likely to have mental illness!" Liu Yi pointed to the mirror on the toilet basin and said.

"Scare yourself?" Wang Jianguo was a little skeptical.

"Yes, when do you scare yourself? Or seeing their own internal organs gouged out, and the victim is likely to have his stomach cut open while he is semi-conscious. The criminal police officers present were stunned.

Liu Yi continued: "Judging from the scene, the murderer is quite calm, judging from the neatness of the knife edge and the cutting of internal organs, there should be a certain knowledge of anatomy, but it is by no means professional, and it may be self-taught." The killer acted cautiously, was agile, and was not the first time he had committed a crime. ”

"Let's go back to the police station first! This case is a bit strange, let Xu Wei handle the rest! ”

"What? Still want me involved? I don't have much time! ”

"Come on! It's happening right under your nose, do you think you have to figure it out! There's another thing, your good brother Liu Xing is missing, isn't it? ”

"Missing? It is true that I haven't been able to contact him for several days. ”

"Someone reported the crime!" Wang Jianguo then lit a cigarette as well.

"Who? Any clues? Liu Yi asked with concern.

"It was his girlfriend who reported the crime, and there are no clues for the time being." Liu Yi's mood was staggered, and his younger brother disappeared at this time.

After several people returned to the police station, Liu Yi hurriedly asked, "Xiao Jia reported the case?" Did you interrogate her? ”

"The interrogation was carried out as soon as possible, but there were no favorable clues." Wang Jianguo looked quite helpless.

Liu Yi sat down slowly, lowered his head, and remembered the scene of growing up with Liu Xing in an orphanage, when the two of them had a hard life, and they were not only bullied by the big children in the orphanage, but also sometimes reprimanded by the teacher.

"Xiao Liu! I know you are brothers, and I will do my best to help you. ”

"When Liu Xing went out to dinner with me a while ago, he said that he wanted to go out sketching with a professor surnamed Li, and it should be him."

"It seems that the two should be very familiar, and I have sent someone to the school to investigate. You also graduated from this school, why don't you know this teacher? ”

"I don't know, maybe I transferred to our school after graduation!" Problem students like Xiang Liu Yi are often not in school, where can they still get acquainted with teachers?

Wang Jianguo usually looks sloppy, but when he acts, he is galloping and extremely efficient.

Liu Yi repeatedly asked himself the question in his heart, why would the murderer go to such great lengths to kill someone? If the murderer and the victim know each other, what is their relationship? ”

At this time, a criminal policeman who ran in from outside said in a panic: "Team leader, team leader, it's not good, come and take a look." ”