Monsieur Durand-Bidon's mother-in-law is decidedly cantankerous. She never ceases - she who is a duchess - to reproach the latter for his low origins. One morning, at dawn, while he comes home "well watered", he is surprised with a comrade at the bottom of a bathtub. Taken for a homosexual, overwhelmed by Step-Mom, he will never stop trying to escape her and will end up, after many adventures, by learning a somewhat embarrassing secret about the pseudo-nobility of his step-family.
| Actor | Role |
|---|---|
 Lucien BarouxBidon Durand | Bidon Durand |
 André Lefaur'La Bobine' | 'La Bobine' |
| LLyne CleversAnne of Austria | Anne of Austria |
 Germaine LaugierMadame Durand | Madame Durand |
 Marguerite MorenoDuchess | Duchess |
 Rivers CadetManservant | Manservant |
 Armand LurvilleTenant | Tenant |
 Georges MortonMusketeer | Musketeer |
| GGisèle ParryBarmaid | Barmaid |