The protagonist, Shen Mo, appears to be a criminal psychology consultant with a withdrawn personality who is dubiously hired by the police. In fact, he hides multiple "vests" - he is a legendary figure in the field of international criminal psychological profiling, "S", and a mysterious hacker "Ghost" who is frightened by serial killers around the world. Once his true identity is exposed, he will be pursued by enemies and police investigated, completely breaking his plan to find out the truth about the mysterious death of his parents.
- **Mission Impossible**: Faced with a series of perverted murders that imitate his past profiling cases with extremely professional techniques, Shen Shen must use the "vest" ability to secretly investigate under the close surveillance of the police (especially the criminal police captain who is full of doubts about him), while avoiding revealing that he is the "prototype" imitated by the murderer. The time limit is that the murderer has predicted the next crime and will target people within the police force.
- **Dilemma**: When the investigation points to the possibility of a murderer's "eyes" within the police force, which may even be related to his parents' old case, Silence must choose between "using all the resources of 'S' or 'Ghost' to quickly solve the case (but the identity is very likely to be exposed)" or "maintaining the mediocre appearance of a consultant and advancing slowly (which may lead to more deaths)".
