Léon, a humble civil servant, has the unusual ability to walk through walls, however thick they are. One day, he falls madly in love with a charming hotel thief by the name of Suzan.
Bourvil
as Léon Dutilleul
Joan Greenwood
as Susan
Gérard Oury
as Maurice
Henri Crémieux
as Mr. Lécuyer
Roger Tréville
as Félix Burdin
Jacques Erwin
as Gaston
Frédéric O'Brady
as The Medical Specialist
René Worms
as An Employee at the Ministry
Nina Myral
as Mrs. Eloise
André Dalibert
as
Nicole Riche
as The Lady of the Second
Germaine Reuver
as Mrs. Ménard, the Concierge
