A depressed policewoman (she is on the verge of suicide in the first shot of a film) investigates the murder of a young Thai woman whom she meets by chance. Other disappearances will follow. The bodies are mutilated. Is he a serial killer? She leads the investigation and manages to find out: it concerns a girl in an illegal situation in Taiwan; they arrive from Thailand. But some disappear and are found with missing organs.
Everything often takes place at night and often in the rain, in a dark, depressive atmosphere, very successful. Our investigator is not a superhero, and the Taiwanese police don't seem very efficient either. Janine Chun-Ning Chang carries the film and carries out the investigation with difficulty.
The film is a success in its genre. It maintains the viewer's attention until the culprit is identified and his confrontation with the policewoman.