Chronic serial womanizer Stephane Margelle drops his wife Sophie off at the airport so she can go away for Easter weekend. He immediately picks up beautiful young Julie, who has just had a fight with her married boyfriend. He gets her back to his apartment and is preparing for a sexy weekend, when his wife suddenly returns home. He makes up a bizarre, on-the-spot, spur-of-the-moment story that the gorgeous girl is actually his long-lost daughter. Julie plays along, but this leads to a whole series of increasingly ridiculous lies and comical situations (such as when her real mother shows up).
Jean-Paul Belmondo
as Stephane Margelle
Sophie Marceau
as Julie
Marie Laforêt
as Sophie Margelle
Rosy Varte
as Marlène Chataigneau, la mère de Julie
Michel Beaune
as Rousseau
Marie-Christine Descouard
as Melle Fleury
Gérard Hernandez
as Le serveur du restaurant indien
Elisabeth Kolhammar
as Marguerite, la bonne
Flora Alberti
as
Marc Lamole
as Le médecin
Maurice Auzel
as Le chauffeur de taxi myope
Laura Ballard
as Le belle nageuse
