Urbain Donnadieu's first love is money. It's also his second, third and fourth love. The only reason he married - a tax inspector named Fleurette - was to avoid a fine for tax evasion. For several years, he has been stealing money from his construction company and buying gold bars with his ill-gotten gains. His plan is to deposit all this wealth in a Swiss Bank, where neither his wife - whom he is about to divorce - nor the French State can get at it. Accompanied by his money-grabbing Granny Zézette, Urbain heads off for Switzerland, with his gold concealed in the walls of a model house on the back of a trailer. Unfortunately, his scheme is threatened by his wife and his embittered ex-chauffeur, who are determined to get his money at any cost...