This is a game that only opens the entrance on time at 2:30 in the morning. Each person selected in this game has only one chance to participate. Once the game starts, it cannot end unless "death", and the winner at the end of the game can have what he wants. Qin Zhou is a criminal policeman. In his twenty-four years of life, he has always loved the country, the party and science. A month ago, there were a series of inexplicable suicide cases in R city. The gender, age, occupation, and economic status of the victims were all irregular, but something seemed to be pulling things to happen. In order to assist Qin Zhou's investigation team, the organization dispatched an investigation team responsible for behavioral analysis to help the investigation team solve the case. So Qin Zhou met Bai Chi for the first time...