Lu Ming, a gold medal detective, was ruined due to his inability to solve the "Joker Serial Murder Case" and was eventually killed accidentally during the pursuit. However, death is not the end. He suddenly woke up and found that he had traveled back in time, but his identity became the first victim of the "Joker Case" - a weak female college student, and there were only 72 hours left before she was killed.
A mysterious voice sounded in his head: [Welcome to the "Victim Self-Rescue Game". Please find the murderer within the specified time and change the ending of death. If the mission succeeds, you will enter the body of the next victim; if the mission fails, your consciousness will completely dissipate.
Thus, a most desperate "role playing" reasoning game begins. Lu Ming was forced to relive this serial murder case again and again as a victim. He possesses top criminal investigation knowledge and future information, but is trapped in the body of a defenseless victim. He must use each victim's limited identity, resources and relationships to investigate under the prying eyes of the murderer "Joker". He has worked as a programmer, using technology to track clues; as a lawyer, looking for loopholes in legal documents; and even as a vagabond, gathering intelligence in corners of the city. With each cycle, he gets closer to the true face of the "Joker", but he also has a deeper understanding of the helplessness and fear of the victims. Not only does he have to solve the case, he also has to race against time to save "himself". As the cycle deepened, he discovered to his horror that there seemed to be a fatal connection between all the victims that he had ignored...
