A serial murder case occurred in Longfan City. All the victims were women, and the bodies were all missing a part of their bodies. The five-member police and law enforcement team kept shuttling between major crime scenes and autopsy rooms to find the truth behind it. In the dark room, with strange lights, the neatly arranged transparent glass jars actually contained lost hearts! With murders one after another and the case full of mystery, how will Qin Ming speak for the deceased and tell the truth? Faced with a murderer who keeps killing people, who is the last survivor? Is there any connection between the murderer who Qin Ming blames himself for not catching and this case? What do the cross hidden on the body of the deceased and the last sentence "The man from ten years ago is back" represent?