Matthias Duval is in love, but he can't choose between the two twin sisters Betty and Liz Kerner. To pick up the two sisters, he invents his own twin brother and will play both characters.
Pierre Richard
as Matthias Duval / Mathieu Duval
Camilla More
as Elisabeth 'Betty' Kerner
Carey More
as Elizabeth 'Liz' Kerner
Jean-Pierre Kalfon
as Ernest Volpinex
Andréa Ferréol
as Evie
Jacques Frantz
as Ralph
Jean-Pierre Castaldi
as Charlie
Paul Le Person
as le clochard jazz
Jean-Claude Bouillaud
as l’inspecteur
Henri Labussière
as le maire
Françoise Dorner
as
Isabelle Strawa
as
