Jean Balthasar

Vallois, a vice inspector for the Paris police, takes special interest in the plight of drug-addicted Lucky (Najda Tiller), whom he considers to be more victim than criminal. Taking it upon himself to wean Lucky away from narcotics, Vallois also wins her love -- and, incidentally, smashes the dope ring responsible for her addiction

In Marseille, crime squad captain Dominique fights against racketeers and tries to put a young man back on the right track.

A Parisian reporter tries to exonerate a fugitive neighbor of charges he murdered his wife.

Marguerite secretly loves a novelist whose face no one knows. The jealous husband sets up a scheme by asking an actor friend to play the novelist and behave in an execrable way in order to disgust his wife. But things never turn out the way you think they will.