A plumber finally meets the woman of his dreams. But as her uptight family tries to keep him away, he wins the lottery and starts plotting his revenge.

Philippe Ruggieri
as Laurent Demaison, plombier

Michel Galabru
as M. Dupré-Granval, banquier

Stéphane Audran
as Mme Hélène Dupré-Granval

Henri Guybet
as Thierry Denoël, fondé de pouvoir

Odile Michel
as Dominique Dupré-Granval

Michel Peyrelon
as Le patron de l'agence de détectives

Bernard Musson
as Le père de Laurent

Rita Maiden
as La mère de Laurent

Alain David
as Dan, l'ami de Laurent

Max Douchin
as Employé #1 de la banque