Criminal police captain Shen Xiao personally let the real murderer go, and three years later he blew open the door of the police station with deadly evidence. The former deputy Lin Zhao was ordered to investigate, but gradually collapsed between data and human nature; technician Zhou Yan's concealment, forensic doctor Bai Shuang's revenge, and political commissar Huo Zheng's tactics were intertwined into a silent hunting net. When the truth is buried by the system, the only justice is to let the entire system explode in front of the evidence.
