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
Louis Bertain/Louis le blond
Annie Girardot
Hélène
Lino Ventura
Pepito
Paul Frankeur
Fredo
Marcel Bozzuffi
Pierre
Albert Dinan
l'inspecteur Pluvier
Antonin Berval
Zé
Thomy Bourdelle
Un inspecteur
