Page 7 of the case file is the suicide note I wrote to myself - but Shen Zhiyao never wrote it. When this line went viral on the Internet, forensic doctor Lu Zhao found wisteria pollen in the nails of the deceased that did not belong to anyone. Reporter Lin Muxue takes the opportunity to hype up the unsolved case, undertaker Chen Jin silently guards the secret, and psychological counselor Qi Wanru is waiting for a desperate person to complete his self-sacrifice. Shen Zhiyao must tear apart this carefully designed death game before the next 'suicide note' appears. And 17-year-old Jiang Xiaoman was holding the pen that had the same origin as the suicide note, trembling, preparing to write his name.
