The basic premise: A retired bus driver fulfills his lifelong dream of providing an extended "voyage surprise" (the title is translated as "Mystery Tour") for unsuspecting vacationers. They soon realize, while riding in the old man's home-made bus, that he hasn't bothered to plan any kind of itinerary. As a result, they end up in completely preposterous situations, of course. Voyage surprise!
Thérèse Aspar
as Marianne
Maurice Baquet
as Teddy
René Bourbon
as Monsieur Grosbois
Dominique Brévant
as Janine
Roger Caccia
as Monsieur Barbizon
Martine Carol
as Isabelle Grosbois
Lucien Carol
as Boss of the "Paon"
Niko Dakis
as Boris
Etienne Decroux
as Mikhaïl
Thérèse Dorny
as Mademoiselle Roberta
Jeanne Dussol
as Madame Duroc
Jacques-Henri Duval
as Grim
