Shopkeeper Victor Garnier has naively invested his family's life savings in an African mine, on his banker's recommendation. When the mine is nationalized, rendering the stock worthless, he considers himself shamelessly robbed by the bank; it seems only fair to him to return the 'favor' and rob the bank, teaming up with the whole family as they were all duped. Even for professionals such an enterprise -he decides to dig a tunnel- is quite demanding, but for simple commoners it's daunting, as they also have their personal downsides; thus Victor's wife has a most unwelcome tendency to blurt out the truth, even to the grumpy local copper: a crazy risk when you need to keep a criminal plan secret.
Louis de Funès
as Victor Garnier
Jean-Pierre Marielle
as André Durand-Mareuil
Yvonne Clech
as Eliane Garnier
Anne Doat
as Isabelle Garnier
Michel Tureau
as Gérard Garnier
Catherine Demongeot
as Corinne Garnier
Georges Wilson
as Cyclist Police Officer
Jean Lefebvre
as Construction Foreman
Claude Piéplu
as Priest
Georges Adet
as Gerber
Florence Blot
as Garnier's Housekeeper
Nicole Chollet
as Customer
