Now that the world conflict is over, five inseparable wartime buddies swear eternal friendship now to each other. But there's many a slip 'twixt the cup and the lip. Jean becomes a postman, Marcel a boxer, Roger an actor, André a student and Philippe remains what he has always been, a young man of good social standing. Roger, who can't find any role, is introduced through his singer sister Valérie, to Frédo, a shady nightclub owner.Roger soon becomes one of Frédo's henchmen. To make matters worse, he swipes Jean's fiancée, Simone. Marcel, wh...