A young man who applies for the position of general manager in a fashion house has not reached the desired age. Thanks to a skilful make-up, he gives himself the required appearance and under the name of Monsieur Bégonia, now presides over the destinies of the house.
Popolka takes advantage of the absence of his shrew of a wife to indulge in the delights of single life. His manager showers him with favors because he is in love with a young woman whom he believes to be Popolka's wife. When Madame Popolka returns, the situation becomes confused...
A friendly average Frenchman pretends to be a famous commissioner on vacation. He arrives in a castle converted into a boarding house where, after dinner, guests are invited to participate in a "murder-party". The so-called victim of this little game is really murdered and the fake commissioner must lead the investigation.
