![Jean-Louis Trintignant](http://image.tmdb.org/t/p/w92/pNcpelmMkveMiGXZQNTkXMwoLiG.jpg)
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.