Lu Zhaozhao, a forensic pathologist accused of mishandling an autopsy, is forced to livestream an autopsy to prove her innocence. On camera, she discovers traces of a poison beneath the corpse's fingernails, identical to the poison found when her younger sister died three years ago. Jiang Yansheng, a former criminal investigator, quietly appears and secretly provides crucial physical evidence. Su Tang, an influencer and forensic pathologist, seizes the opportunity to smear her. Shen Jin from the funeral home is entangled in her sister's death. When a middle school student posts during the livestream, "They're eating the same batch of nutritional meals," Lu Zhaozhao finally realizes that every corpse she has dissected was carefully arranged as a warning.
