Brigitte Laurier (Brigitte Bardot), the spoiled and innocent daughter of a French Ambassador cons one of her father's top aides, Michel (Henri Vidal) into marrying her. Brigitte's brattish ways rile Michel and soon he is flirting with old girlfriends to teach her a lesson. In retaliation, Brigitte flirts with Prince Charles (Charles Boyer). Michel is amazed by the jealousy his wife's flirting arouses and the two of them begin a cat-and-mouse game of sexual teasing until they both realise they really do love each other. They settle into happily married life and Charles flies home to England.