After serving together in the French Foreign Legion, a mercenary and a doctor leave the service and go their separate ways. Later, they are reunited and become involved with a caper involving millions in a high-security safe. The two men become locked in during a holiday weekend as they attempt to crack the safe's combination.
Alain Delon
as Dino Barran
Charles Bronson
as Franz Propp
Olga Georges-Picot
as Isabelle Moreau
Bernard Fresson
as Inspecteur Antoine Méloutis
Brigitte Fossey
as Dominique "Waterloo" Austerlitz
Ellen Bahl
as Martha
Michel Barcet
as L'inspecteur Muratti
Jean-Claude Ballard
as inspecteur de police
Marianna Falk
as Catherine
Jean-Paul Tribout
as inspecteur de police
Raoul Guylad
as Gorik
Catherine Sola
as infirmière
