Fifteen years ago, a vicious series of murders occurred in City A, turning twelve-year-old Ye Hanchen into an orphan...
Fifteen years later, a similar case occurred in City A, and Lin Zhengguo, then director of the Provincial Public Security Bureau, immediately sent Ye Hanchen, who had become an outstanding criminal police officer, to participate in the investigation, hoping that he would personally solve the mystery of the year. However, as Ye Hanchen gradually discovered during the investigation, there seemed to be another hidden story in the case...
