This book is adapted from the classic traditional public case storytelling, completely reconstructing the characters and background. It is set on the stage of Huai'an, an ancient city beside the Jiangnan Canal during the Jiaqing period of the Qing Dynasty, and revolves around a bizarre serial murder case. It starts from an ordinary neighbor borrowing money dispute and leads to a series of murders. Nine heads appeared one after another, and thirteen lives were superimposed. The seemingly unrelated murders were actually interlocking and causal. The book is based on the greed, anger, obsession and resentment of the little people in the city. The confused county magistrate, the shrewd gangster, the ruthless businessman, the down-and-out salesman, the market scoundrel, and the good people all appear. Conspiracies, suspicions, manslaughter, frame-up, and revenge are intertwined. Every step is thrilling.