
Marcel and Francis are busy people. Marcel owns a café and spend all his nights running from meetings to meetings with members from the high society... at least, that's what he say to his barman! Francis leaves his home, loving wife and adorable daughter, frequently to attend meetings and demonstration with customers. His boss trusts him so much that his agenda is always full... at least, that's what he say to his wife! In fact, Marcel and Francis' incomes come from their night job: thieves! Here at least, they are professional. Troubles arise when, during one robbery, they encounter a young, high-pitched voice, candid girl who takes the decision to become their associate in crime... for the fun!

Dany Saval
Lucille Baillet

Louis de Funès
Marcel Ravelais

Maurice Biraud
Francis Blanchet

Robert Manuel
Léon Dufour, le directeur des magasins Dufour

Dora Doll
Catherine, la caissière des magasins Dufour

Gérard Lartigau
Lucky

Jean Lefebvre
L'employé à la télésurveillance du Bon Marché

Claude Piéplu
L'inspecteur-chef

Maria Pacôme
Tante Emma

Dany Carrel
Sylvie Blanchet

André Badin
Le gardien de nuit du Bon Marché (as Badin)

Bernard Cara

Madeleine Clervanne
Mme Laurent

Evelyne Dassas
Mireille, une employée aguicheuse du Bon Marché (la belle Mireille, dixit le télésurveillant)

Jacques Legras
L'autre inspecteur