Parisian police commissioner Coleman (Alain Delon) is not a happy man, but he does what he can to get through each day. He has recently started having an affair with Cathy (Catherine Deneuve), and that helps a little. Cathy is also Simon’s girlfriend and Simon (Richard Crenna) is Coleman’s friend. Unfortunately, Simon is also the head of a gang of criminals. When Coleman’s investigation of a drug-smuggling ring closes in, their rivalry comes to a head. One of the highlights of this film is a stunt involving a helicopter and a moving train. —amctv
Jean-Pierre Melville (born Jean-Pierre Grumbach) was an amateur filmmaker as a teenager who, after the start of World War II, began making his own independent short and feature films. He hit his stride in the ‘50s with his memorable adaptation of Jean Cocteau’s novel, Les Enfants Terribles, and, over the next 20 years, specialized in intelligent and exciting crime films, most notably Bob le Flambeur, Le Doulos (aka The Finger Man), Le Samouraï, Le Cercle Rouge, and Un Flic. Melville also acted in his own Deux Hommes Dans Manhattan, as well as Cocteau’s Orphee, Jean-Luc Godard’s À Bout de Souffle (aka Breathless), and Claude Chabrol’s Landru (aka Bluebeard). He died in 1973.
(From http://www.allmovie.com/cg/avg.dll?p=avg&sql=2:102465 )