The floating female corpse broke the original peace of the town. In order to unravel the doubts in his mind, Su Nanxun and Tang Ning, the son of his master, went to Qingshui Town to find out what happened. On the way, they met Xia Mogui, who also came to investigate the case of the female corpse. By chance, the two teams worked together to investigate the case - a rich man with a fortune, a beautiful servant, an old man with strange behavior and other seemingly unrelated clues surfaced. Just when the two thought they were about to solve the case, they accidentally discovered that there was another chilling truth hidden behind the case. Rumors that had been widely circulated twenty-five years ago were revealed again. Both of them were involved in a huge conspiracy. In order to find the truth, the two had to move on...