The brave Monsieur Breloque has a friend, Pierre Martel, a private detective. When the latter asks him to replace him for a while, Breloque, although having no competence in the matter, accepts. He anticipates adventures and misadventures but also happy surprises.
as Monsieur Breloque
as Count of Brazeuil
as Francine
as Baroness Granger
as Thi-Hou
as Detective Pierre Martel
as The son
as Hermance Piegeois
as Countess of Brazeuil