
Jockey Jack has a bill open with a gangster just released from jail. He somehow manages to parry the gangster's knife attack backstage at a theatre and the latter ends up dead being put into a double bass case. A day later the gangster mysteriously has disappeared, but it turns out that he was carrying a bet ticket for a horse race now worth over a million. A turbulent run for the money begins.
Genres:

Louis de Funès as Jacques, le cousin de Jérôme, dit « Jockey-Jack », petit truand

Michel Serrault as Jérôme Martinet, contrebassiste et comédien

Mireille Darc as Rockie « la Braise », femme entretenue

Francis Blanche as L'oncle Absalon, le savant farfelu

Maurice Biraud as Jo Arengeot, un petit truand sortant de prison

Darry Cowl as Gratiopoulos, le milliardaire à la soirée

Raymond Meunier as "La Douane", un complice de Jo

Hubert Deschamps as Le général Frédéric Cédille

Gianni Musy as Riton « Pommes-Chips », le petit truand assassiné

Barbara Brand as La comédienne qui joue Sonia

Paola Barbara as

Simone Landry as Une invitée de Christine

Colette Régis as Christine, la maîtresse de maison

Malka Ribowska as La comédienne qui joue la comtesse Natacha

Jacqueline Rivière as Dorothée, l'ex-collègue musicienne de Jérôme

Yves Barsacq as L'inspecteur de police

Charles Bouillaud as Léon, le concierge du théâtre

Michel Dacquin as Le pasteur

Michel Duplaix as Un accessoiriste

Guy Grosso as Émile, le barman

Roger Paschy as Un accessoiriste

Émile Riandreys as Le régisseur machiniste du théâtre

Venantino Venantini as Pierre Michon, comédien

Madeleine Barbulée as La tante Olphie (voix)

Raymone as Palmyre, la folle

Marcel Bernier as Un accessoiriste (non crédité)
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