Two friends, Tricoche and Cacolet, are partners in a detective agency. Chance has it that Cacolet is hired by Van der Pouf, a rich banker who wants him to watch over his wife Bernardine while the latter, on her part, seeks the services of Thicoche.
Fernandel
as Tricoche
Frédéric Duvallès
as Cacolet, l'associé de Tricoche
Ginette Leclerc
as Fanny Bombance
Elvira Popescu
as Bernardine Van der Pouf
Jean Weber
as Le duc Émile
Saturnin Fabre
as Monsieur Van der Pouf
Sylvio De Pedrelli
as Oscar Pacha
Jean Gobet
as Breloque, le secrétaire
Gaston Orbal
as Fil-de-fer
Rivers Cadet
as Naphtaline
Alexandre Mihalesco
as Le régisseur
Monique Montey
as Georgette
