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.
Director: Jacques Deray
Director of Photography: Jean-Jacques Tarbès
Writer: Alphonse Boudard, Jacques Deray
Producer: Raymond Danon, Alain Delon