Louis Bertain is the owner of a Paris garage which is the front for a robbery gang. He and his accomplices are careful to keep up a civic veneer by day, indulging in criminal activities only when "the red light is on" at night. This status quo is upset when one of the gang members becomes convinced that Louis' younger brother is a police informer.
Jean Gabin
as Louis Bertain/Louis le blond
Annie Girardot
as Hélène
Lino Ventura
as Pepito
Paul Frankeur
as Fredo
Marcel Bozzuffi
as Pierre
Albert Dinan
as l'inspecteur Pluvier
Antonin Berval
as Zé
Thomy Bourdelle
as Un inspecteur
Serge Lecointe
as Bébert
Jean-Pierre Mocky
as Pierre
Jo Peignot
as Mimile
Lucien Raimbourg
as Jo
