Lin Su woke up in the body of Chen Jin, the death row prisoner. The 90-hour countdown to death implanted in his brain screamed: Find out Chen Ming's case, otherwise his consciousness will be sealed forever! Branded with the "antisocial gene," he is forced to assume an impersonation and use his twisted talent for criminal profiling to survive in the police force. However, every time a case is solved, the countdown accelerates crazily - solving the case actually accelerates his death. During the investigation, the shocking truth gradually emerged: the real cause of death of the deceased Chen Ming pointed to a covered-up "criminal gene transplant" conspiracy, and the templates for all perfect crimes actually originated from Lin Su's own unawakened memory. He is both the hunter and the blueprint for his prey. The death spiral between the past and the future has turned. Lin Su must uncover the cruel truth that he is the real murderer's "ultimate weapon" before his consciousness dissipates, and break this closed-loop killing situation tailor-made for him.
