The film story depicts Emile Buisson, following the death of his wife and child, escaping from a psychiatric institution in 1947 and returning to Paris. Buisson, who three years later would become France's public enemy number one, begins a murderous rampage through the French capital.
- Genre: Crime, Thriller, Drama
- Studio: Adel Productions, Lira Films, Mondial Televisione Film
- Keyword: robbery, detective, neo-noir
- Cast: Alain Delon, Jean-Louis Trintignant, Claudine Auger, Renato Salvatori, André Pousse, Marco Perrin