A wealthy businessman dies suddenly, and every piece of evidence points to forensic pathologist Zhou Jiming. The person who personally handed over the evidence against him is none other than his girlfriend, Lu Zhiwei. Zhou Jiming turns the tables with a doctored autopsy report, only to discover a case number from an old case ten years ago hidden inside the victim's body. Detective Tang Yu'an joins forces with him under immense pressure, while lab examiner Xu Qichi traces a chain of underground experiments. The man Lu Zhiwei wants to save, Cheng Xubai, is he an innocent victim, or the real murderer hiding behind the bodies?
