One morning three years ago, 110 received a report that a male corpse was found in Room 1703, Unit 3, Block C of Hyatt City, the deceased was sitting on the bedroom floor in neat clothes, with his head leaning on the side of the bed, facing the door, with no external injuries all over his body, and the cause of death was unknown.

It was confirmed that the deceased was the head of the apartment, named Zhang Cheng, male, born in 1979, a reporter for the city television station, and single.

According to the investigation, the room at the scene of the crime was locked from the inside, the windows were closed, and the two door keys were found on the deceased and on the shoe rack at the door. The medical examiner conducted an autopsy on the deceased, and through the degree of swelling and bleeding in the lung lobes, the cause of death was asphyxiation and hypoxia, and it was determined that the death was not caused by poisoning caused by gas inhalation, and the detection and analysis of adrenaline and cardiomyocytes showed that the deceased was not even frightened or panicked before his death.

The adrenaline secretion was normal, the muscles were relaxed, there were no signs of attempted struggle, and judging by the corpse spots and the degree of decay of the food in the stomach, the time of death was more than 36 hours, which should have been around midnight the day before.

And the forensic doctor did not find any drug residue in the stomach, the information provided by the forensic doctor was non-mechanical asphyxiation, and neither the craniotomy nor the thoracic dissection found any clues to support homicide, but it was also not supported by the pathology of sudden death from the disease.

The feedback received by the criminal police when visiting the neighbors confirmed that they did not hear any suspicious sounds, although it could not be ruled out that he was killed, but from the scene, there were no traces of struggle and struggle, could it be that a big living person suddenly couldn't breathe air, and then sat honestly and waited for death? It doesn't make sense.

The criminal police immediately launched an investigation into Zhang Cheng's circle of activities, but as a reporter, he came into contact with too many people every day, and his circle of activities was too wide.

From the mouth of his colleague, he learned that Zhang Cheng had an excellent reputation during his lifetime, never had a grudge with anyone, and there was no debt problem, Zhang Cheng's parents died four years ago, and this house was also a new existing house bought by Zhang Cheng after selling his ancestral house, and there were tens of thousands of yuan in deposits in the bank account, so there seemed to be nothing suspicious.

Although the police do not rule out the following possibilities, it is true that there is no favorable evidence to support vendettas, love killings, and suicides, and the way of death is so peculiar that the clues are completely broken here.

As a result, this case has become a headless case, according to the custom, before more valuable clues are discovered, the case should be stuffed into the thick pile of files of the criminal police team, waiting for mold, but the turning point of the matter actually fell on a young man who had just been assigned to the criminal police team.

The young man's name is Geng Xiangdong, after graduating from college, he was assigned to the city criminal police team, and every day he followed the master out to the scene to do some miscellaneous work, always looking forward to chasing the murderer for thousands of miles, or a big case with suspense so that he could show his hand.

As a result, the wait was two years.

But just when his blood fell, the case suddenly fell in front of him. Geng Xiangdong felt that this was his chance, if he solved the case alone, then he would be proud in the team, and he would no longer have to look at the faces of those old fritters.

So the night after the team asked for filing, he came to Zhang Cheng's house alone, tore the seal, and asked the guards in the guard room downstairs to open the door.

Geng Xiangdong did not turn on the lights in the dark room, because he was careful and found that on the day of the report, the lights at the scene of the crime were not on!

According to common sense, there are two possibilities:

First, the time of death is during the day, and there is no need to turn on the lights at all. But judging from the time of death inferred by the medical examiner, the time of Zhang Cheng's death should have been around midnight, which turns the possibility into a possibility.

That is the second point, late at night when Zhang Cheng died, there was no light on at all in his house. Zhang Cheng was dressed neatly in his own home, obviously not to go to bed, but since he didn't sleep, why didn't he turn on the lights? What is a man doing in his bedroom in the dark? This is the breakthrough point of the case that Geng Xiangdong relies on!

Geng Xiangdong stood in the position of Zhang Cheng's death by the moonlight and began to look around, and found nothing in the search for half an hour, this room has been turned upside down in the process of collecting evidence a few days ago, and there can be no major mistakes in the area of several square meters for the criminal police team, Geng Xiangdong also knows this.

Just when Geng Xiangdong was a little deflated, suddenly a strange thought crossed his mind and sat in Zhang Cheng's place!

Geng Xiangdong thought of this, and his heart sank for a moment, this thought aroused him in a cold sweat, even if he was a tough man, in the middle of the night in a room where someone had just died, it was false to say that he was not afraid, not to mention that such a thought came out of nowhere.

Geng Xiangdong swallowed his saliva unconsciously, he secretly scolded himself in his heart for his crow's mouth, and muttered the names of the gods and Buddhas over and over again, and finally driven by utilitarianism, he still sat in Zhang Cheng's position head-on, fixed the line according to the traces of the scene, and restored his body to the angle of Zhang Cheng's death as much as possible, and he began to look at the whole room from Zhang Cheng's perspective.

Directly ahead, the living room outside the bedroom door was empty, only a coffee-colored sofa was blocked by the door of the room, on the right side of the bedroom was a large brown-red wardrobe, next to the wardrobe was a huge bookshelf, the magazines and books on it were a little messy by the criminal police team, and on the left was the window, and there was nothing wrong with the vision.

This made Geng Xiangdong feel ridiculous, pretending to be dead in the middle of the night, but when he looked up and got up, he found that there was an inconspicuous spot of light in the middle of the chandelier on the ceiling.

It was a reflection that made people feel a little unnatural, Geng Xiangdong took out a flashlight and shone it on the lamp, in the chandelier... There's something hidden!

Geng Xiangdong jumped up suddenly, excitement was transmitted to every cell in his body along the nerves, he hurriedly moved a chair from the kitchen, and barely took this thing off on tiptoe with his height of more than one meter eighty, at this time Geng Xiangdong felt that the truth was very close to him, the strong beating sound of his heart filled his entire eardrum, and his palms were full of sweat because of excitement, as if a scroll full of secrets was spreading out in front of him!

He stepped down from his chair and stood there as if he wanted to hang himself, looking at what was in his hand, and it turned out to be a car key!

This is a foldable key, but it is longer than an ordinary key, remote lock, back box lock, alarm are readily available, the back of the key is a certain brand of car logo, but this car logo seems to be painted with a layer of things, it looks blurry, and the metal material inside is exposed with a fingernail.

But Geng Xiangdong immediately determined that this was not an ordinary car key, but a pinhole camera!

This kind of pinhole camera is not difficult to buy on the market, and the criminal police team also used this camera to collect evidence in the early days, but the recording time was too short, and it was later eliminated. Geng Xiangdong rushed out of the door without putting back the chair, slammed on the accelerator all the way and rushed back to the criminal police team.

Late at night, only a few criminal police officers on duty chatted on the first floor, Geng Xiangdong said hello and went straight to the office area on the second floor, and when he sat in front of the computer and turned it on, he began to look at the pinhole camera seriously.

Obviously, this pinhole camera has been modified, at least it has been colored, very close to the color of the base of the chandelier, and it is placed in the middle of that complex European-style chandelier, and it is such a backlit position, if it is not for the reflection of the lens of the pinhole lens, it is really difficult to find.

Secondly, this pinhole camera should be the more common one on the market, the memory is small, and the battery consumption is very large, but it is obvious that its tail interface has been artificially lengthened, Geng Xiangdong studied for a long time and didn't know what kind of tricks and feet Lu Dao did. He didn't bother to continue researching, for him, the contents of the camera were obviously much more important than the machine itself.

Geng Xiangdong carefully linked it to his computer, and hurriedly clicked on the folder of the pinhole camera.

About an hour later, the criminal police on the first floor heard a scream upstairs, several people looked at each other and hurriedly ran upstairs, and when they arrived at Geng Xiangdong's seat, they saw Geng Xiangdong staring at the computer screen with a frightened face, his mouth open, and his face was reflected in light blue by the computer screen.

Geng Xiangdong slowly turned his head to look at the criminal police officer on duty who had just come up, and then his eyes rolled and he fainted.