A timid young man marries the daughter of the entomologist he works for. On the train for their honeymoon, he takes his young wife in his arms when a customs officer suddenly enters the compartment. The groom is now inhibited.
| Actor | Role |
|---|---|
 RaimuJules Papillot | Jules Papillot |
 Sylvia BataillePaulette Papillot | Paulette Papillot |
 Pierre BrasseurEdmond Trivelin | Edmond Trivelin |
 Pauline CartonAngèle | Angèle |
 André AlermeHélois de la Baule | Hélois de la Baule |
 Germaine AusseyEvelyne | Evelyne |
 Blanchette BrunoyUne girl | Une girl |
 Saturnin FabreProfesseur Puget | Professeur Puget |
 René GéninLe second du professeur | Le second du professeur |
 Henri GuisolCoco de La Baule | Coco de La Baule |