François Donge, a rich industrialist and womaniser, meets a girl nicknamed Bébé who he marries. Ten years later, poisoned by his wife and dying in hospital, he recalls his married life and understands how his wife who adored him suffered from his many affairs and indifference.
Spies from several countries try to find out what secrets are hidden in the mind of a young amnesiac girl who has appeared in Paris.
Three attendees at a puppet theater don various roles in order to sing a variety of songs by Jacques Brel, all while hippies and other eccentrics cavort about them.
