Shen Jin was falsely accused of being a serial killer, and the evidence was overwhelming. No one spoke up for him in five years in prison. Until forensic doctor Jiang Zhao quietly reopened the old case and discovered that there were plant spores that did not belong to the world remaining in the deceased's stomach. And the old man who burns paper in the funeral parlor repeats one sentence every night: 'Six pairs of shoes are buried in the Bone Shrine. ' When Chen Jin tore open the evidence bag in court and took out the bones of the real murderer's family, the entire audience was silent—the cremated 'father' was actually the substitute buried by Jiang Zhao himself. The real murderer was sitting in the witness box, smiling and applauding.