"How can you remember this day so clearly?" Luo Cheng asked.

"Work habits, what's wrong, is there a problem?"

Luo Cheng shook his head and said no, he already had some spectrum in his heart, Lu Yan took a leave of absence when his father and son were killed in Chu Palace, and Chu Yue was taken away by a woman, is this a coincidence?

As far as the time for committing the crime is concerned, Lu Yan's time is very sufficient.

Saying goodbye to Ye Hong, Luo Cheng and Xiao Wu rushed to Lu Yan's rental house on Xinhua Road non-stop, many of the houses on Xinhua Road are old houses of the last century, and the people who rent here are basically working-class, the landlord is an obese woman who weighs more than 200 pounds, and when the police come, she also looks like she loves to ignore it, and she is a little absent-hearted when she looks at TV with melon seeds.

"You say Lu Yan, she's at home."

Right at home?

Luo Cheng and Xiao Wu glanced at each other and were very surprised, they looked for Lu Yan everywhere, but they didn't expect her to be at home.

"When did she come back? Are you sure she was at home and didn't leave? Luo Cheng hurriedly asked.

"I came back the day before yesterday, it seems that this is my rental house, and I don't know if she's not there? When this person first came, he didn't step out of the door once in half a month, and he played games at home every day, so if you want to go to her, go up, and the last room on the top floor is her room. ”

Luo Cheng thought of Li Shengyu and asked, "Just her?" ”

"yes, she's alone."

Luo Cheng reported the situation to He Zhonghua and then took Xiao Wu upstairs together.

The top floor of the rental house was covered with clothes, and the doors of the four rental houses were closed.

Lu Yan's door has no padlock, and there are two pairs of shoes on the shelf at the door, and when you get close to the door, you can see that the door lock has been pulled with cobwebs, which means that the door has not been opened for at least one day.

Luo Cheng pulled out his pistol and slowly approached it, stretched out his hand and pushed it, but the door made a muffled sound and did not push it.

"Bang bang!"

Luo Cheng knocked on the door and hurriedly shrank back, Xiao Wu was a little nervous on the side, if Li Shengyu was also in the house, they would be very dangerous, Luo Cheng took a deep breath and calmed down.

The room was very quiet and there was no response.

I knocked it again and it still didn't respond.

"Lu Yan!" Luo Cheng stood at the door and put his ear to the door.

Still nothing happened.

Luo Cheng took a step back and kicked the door violently, and the iron door made a loud bang.

Another kick, still no effect.

Just as he was about to kick the third kick, Xiao Wu waved his hand and motioned for Luo Cheng to stand aside.

Xiao Wu took a few steps back and rushed up, which was a flying kick.

"Bang!"

The door was kicked open, and the bolt collapsed far away.

A musty smell came from the pavement, the doors and windows in the room were closed, empty, and the things in the room were very messy and messy.

Lu Yan's room is just a single room, the bathroom is in the room, Luo Cheng stepped forward and opened the door of the bathroom, and the bathroom was also empty.

What about people?

Luo Cheng went to check the door bolt again, it was indeed kicked open by them, the screws were deformed, the traces were very fresh, and this fan was indeed buckled from the inside. Luo Cheng walked to the window again, the window frame was wooden, inlaid in the wall, and the thumb-thick iron railing was rusted but still intact, and it was very strong, with a fist at most.

The roof is composed of beams and color steel tiles, and the gap between the color steel tiles and the wall is only a few centimeters, and it is impossible to drill out of a person at such a distance.

And what about people?

Isn't it hell that the door is locked, the window can't get out, but the person is gone?

Xiao Wu pointed to the flat bed, signaling that Lu Yan might hide under the bed, this kind of bed is hollow in the middle, and it can indeed hide a person.

The two of them grabbed one by one and lifted the mattress directly.

However, it was still empty under the bed.

Lu Yan is really gone.

The missing room is a very tricky case.

"How do you say you can make a person disappear in such a sealed situation?" Luo Cheng looked at Xiao Wu.

Xiao Wu looked around and said, "I suspect that Lu Yan is dead." ”

"What about the corpses?"

"It was decomposed and thrown into the trash and washed away."

This method does make people disappear in a secret room.

But there is an obvious problem with this approach.

"And what about the murderer? How did he get out? It can't be the deceased who dismembered himself, right? ”

Luo Cheng's question stumped Xiao Wu, indeed, if someone killed someone, then how did he get out?

"Also, who made this secret room? What is the purpose of creating such a secret room? The proprietress said that Lu Yan didn't go out, so where did she go? ”

Luo Cheng couldn't answer several questions in a row, and Lu Yan's behavior was really strange.

People from other departments rushed over one after another, and the latest news came from Dai Lin's side, and after comparing them, they were convinced that one of the three fingerprints collected from Ma Chaoxin's house belonged to Lu Yan, which means that Lu Yan did go to Ma Chaoxin's house.

The on-site investigation and the surrounding visit were carried out at the same time, and Dai Lin did a detailed investigation in the room, although the scene was very chaotic, there was no bloodstain, and there was no trace of a fight.

Li Xiao wanted to investigate the surrounding surveillance and fell into helplessness again, just like Ma Chaoxin's home, there was no monitoring around it, the blind spot was too large, the roads extended in all directions, and any exit could go out, and there were countless monitoring points extending out of these intersections, not to mention that Lu Yan had been missing for several days.

With a minimum of 20 cameras, Lu Yan last appeared the day before yesterday, and now it is four days, 24 hours a day, 4 days is 96 hours, and then multiplied by 20 is 192 hours, the police need to watch it point by minute, 192 hours is 11520 minutes, which requires a lot of police force and energy to watch frame by frame.

It's tiring, but I have to do it, even if it's a needle in a haystack.

Although the secret room is mysterious, there is no absolute secret room crime for the police, and the so-called secret room seems to have no flaws, but it must have its tricks.

Lu Yan could never disappear out of thin air, and the biggest reason why she arranged a secret room was to confuse everyone's sight.

Windows and doors are also the first target of everyone's inspection, especially the door.

Lu Yan's deadbolt structure is very simple, it is composed of a steel bar with a buckle, and when she sleeps, she will fasten the door from the inside, and then press the buckle into the lock, and if necessary, you can also lock the door from the inside.

Earlier, when Luo Cheng and them destroyed the door, the buckle and the lock had obvious friction marks, and even rubbed off some patent leather, which means that the buckle should have been buckled in the lock at that time, so it would be impossible to pull it away from the outside.

At this time, Xiao Wu walked over from Luo Cheng's side with a physical evidence bag.

"Wait, what's this bag of yours?" Luo Cheng asked.

Xiao Wu lifted the physical evidence bag, which contained a coil and some black threads wrapped around the scene.

"A kind of thread, I don't know what."

"I'll see."

Luo Cheng took the evidence belt and pinched it to recognize the threads.

"It's a nylon thread that is used to stitch canvas, and it's very strong."

"And half a coil."

Luo Cheng took the nylon thread and looked at the door and then at the deadbolt, and suddenly found that there was a gap between the door frame and the wall, and his eyes couldn't help but light up.

"I see how she got out!"

After speaking, Luo Cheng shook his head again and said, "No, no, we were wrong from the beginning, no, we were misled, fake, all fake." ”

What fake?

Xiao Wu was completely confused.

"What do you say? Whether you know or don't know. ”

"I know, but it's fake."

Yes?

"What do you mean?" Xiao Wu was even more confused.

Luo Cheng grabbed Xiao Wu's shoulder, looked straight at Xiao Wu, and said: "Map, that map, let me ask you, if you are a criminal and you have carefully designed a map to commit a crime, then this map must be very important to you, you will definitely hide it on your body, right?" ”

"Yes...... Oh, yes. ”

"But I found it on the couch, and I threw it on the couch so casually, just imagine how such an important thing could be discarded at will?"

"It seems to make sense, but what does that mean?" Xiao Wu still didn't understand.

Luo Cheng clenched his fists and said, "There are two possibilities, first of all, he did lose the map, and then he couldn't come back and retrieve it because of something." Secondly, he left it on purpose, I am more inclined to the latter, we did not collect any other strong evidence at Ma Chaoxin's house except for a few fingerprints, from the burning of the lunch box and clothes, it can be seen that the suspect is a person with strong anti-reconnaissance ability, he would never lose the map so carelessly, so I think that the map is fake, it was deliberately left with us, it is to disrupt our deployment, interfere with our judgment and hide his true intentions! ”

"No, isn't that the door? How did you get to this? Xiao Wu was a little stunned, he always felt that Luo Cheng's thoughts were too jumpy, and he couldn't keep up with the rhythm at all.