Mangin, a police inspector in Paris, leans hard on informants to get evidence on three Tunisian brothers who traffic in drugs. He arrests one, Simon, and his girl-friend Noria. Simon’s…

The girlfriend of an associate of a gangland boss, is persuaded by a police detective to inform about her lover’s associates.

Abandoned by his wife, Bernard struggles to overcome his grief and settles in a residence for singles. Employed by “SOS Doctors”, he provides night guards to occupy his insomnia. That’s…