One-time gangster Antoine is enjoying retirement on the coast, now managing a boating club. He receives a visit from a former accomplice who asks for a loan. The money will be repaid by a crook who is now in hiding; Antoine intends to recover his money.

Lino Venturaas Antoine Beretto
Jean Lefebvreas Léonard Michalon
Michel Constantinas Jeff, boss of the "Homard Américain"
Mireille Darcas Églantine Michalon
Tommy Dugganas Colonel McLean
Marcel Bernieras Marcel, Jeff's employee
André Pousseas Crook on the run
Mick Bessonas Crook on the run
Robert Dalbanas Embalmer
Maurice Fellous