"Tu seras duchesse!" ("You'll Be a Duchess!") With these words, self-made industrialist Poisson orders his daughter Lucie to marry a wealthy Duke. The duke's father objects to the union, whereupon Poisson arranges another marriage for his daughter, this time to an impoverished and sickly young marquis. Poisson's strategy runs something like this: the Marquis is expected to die soon, whereupon the widowed Lucie will become a marquess, and thus a worthy bride for the Duke. But the Marquis foils these plans by staging a miraculous recovery. The explanation? The Marquis and Lucie have been in love all along, and this was the only way that they could wed with Poisson's blessing. Darned clever, these Frenchmen!.

Cast

Marie Glory

Annette Poisson

Fernand Gravey

Marquis André de la Cour

Pierre Etchepare

Duke of Barfleur junior

Pierre Feuillère

Léon

André Berley

Monsieur Poisson

Habib Benglia

Geneviève Doriane

Couquette

Paul Clerget

Duke of Barfleur senior

Jean Gobet

Doctor

Claude Marty

Abbot

Fifiou

Sem

Geo Leroy