Don Sallust (Louis de Funès) is minister of the King of Spain. It is a being disingenuous, hypocritical and greedy that collects the taxes himself, he turns in part to his advantage. He is hated by the people he oppresse.Accusé by Queen, a beautiful princess Bavarian, of having an illegitimate child to one of her maids of honor, he was stripped of his duties and ordered to retire to a monastery. Decided to revenge, it comes in contact with his nephew seducing Caesar …