The organ removed by forensic doctor Huo Yetang actually showed a heartbeat in the autopsy report - it was the left kidney that he removed to save the patient three years ago, but now it appears in the body of the serial murder victim. Detective Jiang Luming traced the blood-stained chain and found that all the deceased had undergone Huo Yetang's surgery. When the hospital confidentiality agreement and the body code were torn apart, they were shocked to realize that someone had used living organs to graft lies, and Huo Yetang's knife was the fuse for the real murderer. What he cut off was not a lesion, but the key to hell.
