When the last subway train turns into a death train, thirteen strangers are forced to participate in a "seven-day reincarnation" game. Pretenders lurk, the rules are full of lies, and you can only survive by finding all the pretenders. Former police officer Chen Mo woke up and found that his memory had been lost, except for the warning written in blood on his notebook: "Don't believe anyone who claims to know you, especially Su Wan..." What he didn't know was that he was one of the designers of this death game.
