The plot revolves around Catherine, a serial killer who seduces men and then murders them throughout countries in Europe. Catherine is trailed by the detective "The Eye" Beauvoir, who fantasizes that she is his long-lost daughter and disposes of her trail of corpses to foil the police. Catherine has a real love affair with a blind architect (Sami Frey) but Beauvoir's jealousy causes the man's death. Catherine returns to her psychotic killing. As the police dragnet closes in, Catherine and Beauvoir have their final showdown.