Chen Yehe personally buried the only witness, the body was confirmed to be correct, and the surveillance was intact. But three days later, in the freezer of the funeral parlor, the man who was supposed to be the corpse opened his eyes, with his fingerprints hanging from the corners of his mouth. Jiang Su is a forensic doctor and the only witness who was not at the scene when the crime occurred. When Chen Yehe was involved in the serial murder case, Jiang Su wrote in the autopsy report: "He is not dead, you personally brought him back to life." In the cold night, the two faced each other in the morgue, and the iron door clicked shut - who was lying? Who is burying the body? Who is the real dead?