During the winter of 2019, in the city of Shenhai, a series of criminal cases occurred. A batch of women’s su*cides, a mass poisoning at a hospital, and a huge explosion in an abandoned building in Southern Henan… These seemingly unrelated incidents were ultimately connected to two people by a single dark thread. Dai Xueming and Xu Tuo. And you, the bystander, will recreate everything that happened to them to restore the truth.