Bizarre disappearances and murders occurred one after another in the city, and there was an undercurrent surging underneath. Gu Yuanzhou led the special investigation team and worked with criminal psychologist Lu Yan, technology investigator Song Huaijin, prosecutor Lin Anran, intelligence dealer Xie Mo and reporter Chu Pingting to pursue the truth. Behind every case, there is a greater conspiracy and evil hand. The investigation team worked step by step to uncover a series of suspenseful cases. The cases in each volume were independent but closely related. A more horrifying truth gradually emerged... All the story lines finally converged, revealing the secrets of the "Thirteen Secret Chambers" hidden behind the city, and the destined bonds with each other.
