This film is based on the true story of an escaped Italian mental patient who goes on a crime spree that lasts 30 years. While in the South of France, Kurt seduces 16-year-old Léa. Introducing Léa to his very private world of fake identities, 'borrowed' cars, and guns, Kurt enthrals and terrifies her. Dismissing his fanciful stories about his past as nothing more than idle boasts, Léa doesn't guess that her new boyfriend is actually Roberto Succo, the escaped asylum inmate who's being hunted by half the police in France in connection with a series of kidnappings, robberies, and murders.