Henri, a confirmed bachelor, learns that he is to inherit a million euros from an old aunt, on condition that he marries within the year. Since Henri, a true Dom Juan, refuses to waiver from his love of all women, his friend Norbert whispers the idea of marrying a man. In this way he would respect his aunt's last wishes without losing his freedom. Seduced by this brilliant idea, Henri decides to offer the role to his friend Dodo, a mediocre actor who is single and unemployed. But this white wedding soon turns into a nightmare, because marriage for all is definitely not for everyone!