Television reporters were killed one after another, and all of them were tortured by having their tongues pulled out and their throats cut. Is it a simple act of revenge or a perverted killing? Police officer Tu Haitao was ordered to launch an investigation, but suddenly found that he had fallen into a psychological dilemma. Due to a major trauma in the past, his right arm was numb and stiff, and he was like a useless person. Psychiatrists have revealed that one in five people suffers from mental illness. (Note: This data is disclosed by Shenzhen Kangning Hospital.)
Is Tu Haitao crazy? How can a madman uncover the clues and find the murderer? Tu Haitao faced two enemies, one was a perverted killer and the other was himself. He must defeat himself and face the past in order to capture the real murderer at the last moment.
When all was lost, the murderer left a note: "Close your door." According to the handwriting, the police immediately went to arrest the suspect, only to find that the suspect had been killed, with his tongue pulled out and his throat cut. With the help of female TV reporter Xu Jie, and by tracing the history of journalism, Tu Haitao finally discovered that the murderer was performing perverted performances, interpreting the theories of journalism and communication through bloody killings, such as the "hypodermic injection" theory and the "gatekeeper" theory.