Provocatively titled sexual thriller. Receptionist Miranda (Abril) meets writer Javier (Bardem) at a group therapy session for sex addicts. He's addicted to phone sex and the married Miranda likes to have sex with strangers. While they get to know each other a murder occurs and the investigation is assigned to detective Felix (Gomez), who happens to be Miranda's husband. Soon, suspicions begins to point in Javier's direction. The triangle is strong but subplots are undeveloped and the film sinks into implausibility. Spanish with subtitles.