"Huh?!"

I couldn't help but exclaim at the sight on the screen, and I slammed the stop button, ready to play back and zoom in.

Seeing my movements, Cheng Cheng guessed my doubts, and he sighed: "Mr. Ji, your observation is very sharp—when I watched this video for the first time, I didn't notice the weirdness until a few seconds later...... The man...... He-"

Cheng Cheng's words didn't continue, because I raised my palm and motioned for him not to speak.

I was so focused on my laptop screen that a few seconds later I almost jumped out of my seat!

It was a terrifying sight!

When I wondered about the strange behavior of the man in the video, the white wall of the corridor was suddenly dyed a large red, and I saw that the man looked up slightly, his mouth was full of blood, and the surging blood was constantly pouring out of the woman's left neck!

- The man actually bit the carotid artery of the female patient on the ground!

At this moment, her neck was like a leaky water pipe, and a large amount of blood spurted out of her neck like a fountain, and the walls and ceilings of the corridor instantly turned blood-red!

I unconsciously felt cold all over my body – unless I was on the operating table, someone with a severed carotid artery would die in a few minutes, and there would be no emergency treatment!

And then there was an even more frightening sight - the man actually leaned down again, and continued to bite the head and neck of the woman under him with his mouth—and it was at this moment that I almost jumped up from my seat!

Next, I had lost my sense of time, because the scene in front of me was so cruel that every second seemed like a hell for me......

Actual time: 26 seconds.

That man gnawed off the head and neck of the woman under him!

Then he grabbed the woman's hair, lifted the skull in his hands, staggered to his feet, and continued to walk down the corridor in a strange and twisted manner......

I struggled to escape from the laptop screen and turned my gaze to Cheng Cheng, but he pointed to the screen: "Pay attention...... And also. ”

I was so shocked that I couldn't think of anything to refute it, as if I had lost the ability to speak in an instant, so I turned my gaze to the laptop screen again—

In the video, the man has been thrown to the ground by another patient, who is holding a fire extinguisher, and is smashing at the man again and again, with a mechanical movement, a hideous and indifferent expression......

In the entire range of the camera, there have been three more groups of patients fighting each other, all of them looking crazy and murderous, each time trying to put the other to death, and the murder weapons in their hands are all things that can be found in the hospital - nursing chairs, infusion stands, air tubes, or their own hands and teeth......

Flesh Purgatory...... And that's it.

If I hadn't adhered to my professional ethics, I would have turned the video off right away!

After watching this surveillance video with a sense of discomfort, I opened several other video files, all of which were similar images: people used the most primitive means, killing each other like crazy, full of blood, and corpses everywhere...... The dead are turned into corpses, but the living are even more terrifying to me – those people can no longer even be called "human", and it is not an exaggeration to call them the walking dead.

Eventually, I saw the video, which I had recorded in one of the prologues of the story.

###

"Could it be that this little girl and this middle-aged man are ......" I only watched half of this video, and then expressed my doubts to Cheng Cheng.

"That's right." Cheng Cheng nodded sadly, "My daughter, Cheng Xiaozi, and the security guard of the hospital's security office, Li Huai'an." Then he showed an expression of extreme heartache and vulnerability, which should never have appeared on the face of a criminal investigation captain, but at this time I understood him very well and took it for granted.

However, I still misunderstood—but this is a later story, and at this time, Cheng Cheng, although he looked sad, still reminded me to continue watching the video.

When I saw the dark red chain that stretched out from Li Huai'an's chest and connected to Cheng Xiaozi's hand, I was shocked again!

"That'...... That chain, what's going on?! I pointed to the laptop screen, surprised, and when I blurted out this sentence, I reacted: if Cheng Cheng knew what was going on, he wouldn't have asked me for help, and I, as a spirit detective, seemed to be a little out of shape.

So I immediately apologized to Cheng Cheng.

"The old knife told me that you are an expert in solving this incident—but only well-informed and intuitive, not a magic stick boasting of demon slaying and exorcism spells." Cheng Cheng shook his hand at me, saying that he didn't need to apologize, "You say that, I have more confidence in you." And if you talk to me about ghosts and demons, I'll probably slam the door right away. ”

I nodded: "So, I can only promise that I will do my best, but I can't guarantee that I will be able to complete the commission." ”

"The police can never guarantee that they will solve the case." Chengcheng Road.

I breathe a sigh of relief, at least on this point, we are on the same page.

"That chain...... "I pulled my mind back and began to analyze, "if it really exists, it is a supernatural object, and in general, it should not be directly visible to the naked eye...... So, is there a problem with that camera? ”

When I said this, Cheng Cheng kept looking at me with burning eyes, I knew that this was a test question, if I didn't say anything, causing him to think that I was a Xibei goods, then he would definitely slam the door and leave.

Cheng Cheng didn't answer my question, but asked, "Oh, why do you say that?" ”

When he asked, I knew I was right: "This strange chain should be one of the keys in this incident." I can venture to guess that the people in Shinan Hospital who are caught up in a killing spree should all have this chain in their chests! But the chains don't appear in the other footage — the only explanation is that the camera that captured the last footage was different. ”

Cheng Cheng's reaction was very strange, he first nodded, then shook his head, he seemed to hesitate how to explain to me, and then said: "We also found this anomaly, after the inspection of colleagues in the Physical Evidence Department, there is indeed a problem with that camera - it does not have an infrared filter installed." However, we later tested the survivors of the 517 massacre and never found the chain again. ”

Cheng Cheng's expression was a little confusing, but I understood what he meant in an instant.

Ordinary cameras are not ordinary, and their sensor chips can also receive a wide spectrum of light in a wide area, including infrared rays. However, in this case, the image will be affected by infrared light and appear red, so manufacturers generally add a layer of infrared filter outside the lens or sensor chip to filter low-pass filter, and only transmit visible light below infrared waves.

The camera that captured the chain on Li Huai'an's chest happened to not have an infrared filter installed, so it took a picture of the dark red chain in the form of energy.

Later, the police tested the survivors, and they must have used infrared lenses, but they never captured the strange chain.