In 2011, a headless woman’s body was found in Xinchuan City. The killer remained at large. Detective Zhou Shan broke the rules in his efforts to solve the case, and was caught and dismembered by the killer while investigating. He died in the line of duty. The case was named after him, and investigators wanted to link it to the headless woman case, but were stunned to discover that the two murders had different killers. Student Jiang Ye spent ten years pursuing the killer. While investigating a family annihilation, he met Chen Mi, a university law professor. A series of baffling cases followed, and as he solved them, he unexpectedly uncovered a shocking secret.
