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!
as Marianne
as Teddy
as Monsieur Grosbois
as Janine
as Monsieur Barbizon
as Isabelle Grosbois
as Boss of the "Paon"
as Boris
as Mikhaïl
as Mademoiselle Roberta
as Madame Duroc
as Grim
as Monsieur the priest
as Madame Marguerite
as Abel Renardot, private detective
as Inspector Vaudor
as Pierrot Duroc
as Richard, the newlywed
as Grandfather Piuff
as Commander Wagon
as Baron Gregor
as Florence, the young bride
as Grand Duchess of Strombolie
as The false turk / The innkeeper
as Marinette
as Monsieur Duroc
as Cafe owner (uncredited)
as (uncredited)
as Strombolian (uncredited)
as Theater manager (uncredited)
as (uncredited)
as (uncredited)
as (uncredited)