Detective Ran Dongdong has two problems. One is the dead young woman with a missing hand, and the other is her husband. The first to be called to the scene when the body is found floating near a lakeside luxury hotel, she begins an investigation that soon leads her into a web centred on the scandalous affairs of a powerful businessman.

When she begins to see echoes of the case everywhere, including in her personal relations, she can’t resist interrogating her own marriage. But will the resonances set off a chain reaction in her life that she can’t control?