Detective genius Gu Linyuan was tainted as a madman, and the whole process of a serial murder was reenacted in public, and the blood splattered in the courtroom shocked the country. Criminal police captain Shen Zhao was ordered to arrest him, but found surprising contradictions in the autopsy report. Forensic doctor Bai Yanqiu hides evidence, blogger Lin Wu secretly summons people, and political commissar Zhou Xiao is weaving a bigger conspiracy. When the truth has been buried for ten years, only the madman remembers the trajectory of every drop of blood.
