Shy, timorous bank clerk, Fernand Jérôme, prevents -unwillingly of course - a gang led by "Le Grand J" from robbing the "Crédit Populaire", where he works. Having become a hero out of the blue, this new status allows him to woo Renée, the daughter of chief inspector Merlerin. What Merlerin does not know is that the man he has been trying to arrest for years, "Le Grand J" is in fact Joseph Jérôme, Fernand's father, who has disappeared for years...
Louis de Funès
l'inspecteur principal Victor Eugène Merlerin
Fernand Raynaud
Fernand Jérôme
Annie Noël
Renée Merlerin
Noël Roquevert
Papa le Grand
Suzanne Dehelly
La grand-mère
Jean-Marc Tennberg
la Postiche
Madeleine Barbulée
Mme Merlerin
Paul Barge
L'inspecteur Malabouis
