A crime story writer comes to the French Alps for vacation. However, an envelope given by a strange man, would put him in a conflict between two teams of spies. A young blonde hotel burglar will help him get out of this mess.
| Actor | Role |
|---|---|
 Darry CowlJérôme Lenoir | Jérôme Lenoir |
 Sophie DaumierMarion | Marion |
 Tilda ThamarDolorès | Dolorès |
 Pierre MondyCommissioner Morel | Commissioner Morel |
 Jacqueline MaillanThe spy Natacha Dubrovno | The spy Natacha Dubrovno |
 Jess HahnChris Craft, the American spy | Chris Craft, the American spy |
 Jacques DufilhoEmile, the floor boy | Emile, the floor boy |
 Roger CarelJoseph Kramer aka Doctor Kougloff | Joseph Kramer aka Doctor Kougloff |