"Mr. Dai, don't worry, you have to believe in our police's ability to handle cases. Let me ask you first: Has the sewer in your house been blocked, and how did it dredge it after it was blocked? ”

"Ah, why are you asking this?" Dai Mengzhong obviously didn't understand Jiang Chonglang's question, but he still answered honestly: "When this community was first repaired, the drainage system was not very good. So when it rains, it will be blocked, and at that time, the property of the community will help contact the repair workers. As a result, those repair workers took the opportunity to put a lot of small advertisements on the walls of the corridors of the community. So the property stopped contacting them in a fit of rage, but we also know their contact information, if the sewer is blocked, just follow the phone number on these small advertisements, make a phone call, and someone will come to fix it. ”

"Yes, your family, did you and Song Guanguan do the same?"

"If it were me, I would go to the community property and ask him to find someone to come over just to be safe. But in order to save trouble, she often found a phone number on the small advertisement and called. And she also has a small advertisement in her drawer. Because the company had female repairmen, and because she didn't want male workers to come to her door when she was home alone, she was afraid of danger. And only that repair company has a female repairman, so when Song Guanguan calls, he will designate a female repairman to come, and if the female repairman doesn't have time, then wait for me to come back and deal with it. ”

"Is what you said true, then do you know the phone number of the maintenance company that Song Guanguan often looks for?"

Dai Mengzhong shook his head: "I don't care about these things, she does it alone." ”

After listening to Dai Mengzhong's words, Jiang Chonglang suddenly opened his mouth, and all the doubts were solved.

Just when Wen Caiyu deduced that the murderer had committed the murder, when he had a plastic bag on his foot, Jiang Chonglang didn't think of anything. It wasn't until the time to unclog the toilet that the fecal water inside overflowed and spread all over the floor, so much so that they also had to put plastic bags on their shoes. Jiang Chonglang suddenly thought: The murderer had a plastic bag on his feet, and it was possible that because she was using the toilet at the time, the murderer may be a worker who opened the sewer.

But what Jiang Chonglang couldn't understand at that time was that the sewer repairman was a stranger to Song Guanguan. How could Song Guanguan let him into the house just wearing a close-fitting nightdress, and when he was working, he slept in the bedroom with peace of mind. And Dai Mengzhong told him the answer - the murderer was a woman, after all, for women, Song Guanguan relaxed his vigilance. Wearing a nightdress, he opened the door for her, and while she was working, she fell asleep in the bedroom with peace of mind.

Jiang Chonglang took out his mobile phone and called Zhang Lanshan: "Hey, are you still at home in Song Guanguan?" Look through her drawer to see if there's a small advertisement for a sewer company. ”

Soon, in the drawer of Song Guanguan's bedside table, the police officer found a small advertisement that read: Sewer, on call, phone: 153XXXXXXX.

The police called this number, and after verification: sure enough, on the morning of July 4, the company received a call from a woman, asking to send a repairman to her house to unclog the sewer, and the other party named and asked for a female repairman, and the address left on the phone was Song Guanguan's home.

After receiving a call from Song Guanguan, the company immediately sent a female repair worker to the company, the female worker's name is Wang Fan, according to normal working hours, it should be more than three o'clock in the afternoon, Wang Fan can go back to the company, but that day I don't know how, Wang Fan came back very late, and the next day, she resigned and returned to her hometown.

It seems that this female repairman Wang Fan is suspected of committing a crime, and according to the accommodation provided by her former colleague, Jiang Chonglang contacted the police where Wang Fan's hometown is located, and arrested Wang Fan the next morning.

To be honest, when I saw Wang Fan for the first time, even Zhang Lanshan, who had always hated evaluating other people's appearance, couldn't help frowning. Because of her appearance, she can indeed be described by the ugly six words "earth-shattering ghosts and gods", and any adjective in this world that can be used to describe ugliness is not an exaggeration to be used on Wang Fan. It can be imagined how ugly Wang Fan looks, and what a strong contrast she and Song Guanguan will be when they stand together.

The police also found that in Wang Fan's home, they found a lot of things that did not match her family background: many high-end clothes, cosmetics, various high-end jewelry, and a mirror. These things were identified by Dai Mengzhong, and most of them were bought by him for Song Guanguan.

On the other hand, fingerprints belonging to Wang Fan were also found on the doorknob of Song Guanguan's house. The footprints found on the ground were also left by Wang Fan.

In the face of these evidences, Wang Fan did not refute too much, and soon admitted the fact that he had killed: Song Guanguan was killed by her. And Wang Fan's motive for killing was because she was so loud when she was in the sewer that Song Guanguan couldn't sleep, and she was scolded ugly by Song Guanguan in front of her, and she couldn't bear it in her heart. And the cause of Song Guanguan's death was the same as Jiang Chonglang guessed: he was scared to death by his disfigured appearance

July 4th, which was originally an ordinary day, was also the last day of Dai Mengzhong's business trip, and he will go home tomorrow on the 5th. So this is a great time for Song Guanguan and Shen Haoran on the last day, Shen Haoran has been living in Dai Mengzhong's house for several days, and it was more than 10:00 a.m. on this day that the two woke up. Because last night, the two played a bundle game and tossed until more than two o'clock in the morning.

Not long after Shen Haoran woke up, he suddenly received a call from a colleague in the bar, and there were some things in the bar that he had to go back to deal with quickly. So Shen Haoran got dressed and left in a hurry.

And Song Guanguan, who was still lying on the bed, was also ready to get up after Shen Haoran left. Tomorrow her husband Dai Mengzhong is going home, she needs to clean up the house quickly, because there are already traces of her and Shen Haoran's "love" everywhere, if Dai Mengzhong knows that her red apricot is out of the wall, she will not be killed, and she will be swept out of the house immediately.

After Song Wanguan got up, she first went to the bathroom to take a shower, and then went to the toilet after taking a shower, and when she pressed the flush button on the toilet, she found that the toilet was blocked. That's right, it's because Song Guanguan casually threw garbage inside.

For such a small thing as the toilet blockage, Song Guanguan has long been surprised. She immediately dialed the phone number of a sewer company, this phone was a small advertisement she found from the corridor outside, because this company, with a female repairman, Song Guanguan was alone at home, it was very inconvenient for a man to come in, and Song Guanguan himself was not at ease.

Soon, the company sent a female repairman, and this person was Wang Fan. At this time, it was already noon, and Song Guanguan had just finished cleaning up the house and was a little tired, so she planned to go into the bedroom to rest and sleep.

So Song Guanguan said to Wang Fan: "Please speak softly when you open the sewer, don't wake me up." With that, he undressed and went back to the bedroom.