Henry Roubier, a French promoter, and Enrico Mazzini, an Italian, have signed an agreement guaranteeing them a stranglehold on European highways. While driving on the roads of the south, Roubier takes two young hitchhikers, but an unfortunate swerve the car rushes by Henri and its occupants on the top of a pine tree onto the side of a cliff.

Louis de Funèsas Henri Roubier
Geraldine Chaplinas Mme Muller
Olivier de Funèsas L'auto-stoppeur
Alice Sapritchas Lucienne Roubier
Paul Préboistas Le radio-reporter
Roland Armontelas Le Père Jean-Marie
Franco Volpias Mazzini
Jean Panisseas Le brigadier
Hans Meyeras Colonel Muller
Daniel Bellusas Un alpiniste
Edmond Séchan