Dionisio Vivo, a South American lecturer in philosophy, is puzzled by the hideously mutilated corpses that keep turning up outside his front door. To his friend, Ramon, one of the few honest policemen in town, the message is all too clear: Dionisio's letters to the press, exposing the drug barons, must stop; and although Dionisio manages to escape the hit-men sent to get him, he soon realises that others are more vulnerable, and his love for them leads him to take a colossal revenge.