Elvire Mercier
Billionaire Pierre Leroy
Bank manager
Mathias, crook
Fernand
Eugène
Chauffeur
Monique
Brigadier
Concierge
Denys
Journalist
Olga
Hotel manager
Verdier
Nurse
Gas employee
Martial
A talented but crazy painter, Elvire Mercier agrees to sell one of her canvases to Pierre Leroy, a rich heir. But after a string of misunderstandings, she hands her painting over to a swindler. And her problems have only just begun.