Let's Rob the Bank

Victor Garnier (Louis de Funès) is a shopkeeper who put the family's life savings into an African mine on his banker's advice, and the mine has just been nationalized. Jean Girault sends him home furious, convinced the bank robbed him first and that a tunnel is the fair reply. His wife Eliane (Yvonne Clech) cannot keep a secret, and the whole family has been drawn into the plan, so the person they must hide it from most is the one under the same roof.