Based on the idea by Roland Topor (screenwriter of Roman Polanski's The Tenant), this very curious completely silent melodrama tells the story of Mona, who has left her father, the railway gatekeeper, after being raped on the train track. She is kidnapped and taken to a Parisian whorehouse. However, a disinherited prince, Dudu who tries to rescue her, is himself kidnapped and forced to serve as a male prostitute. The two captives meet there and fall in love. They are taken away by different rich people - he to an Arab "harem," she to a surgeon's home.

Mona, fille du vieux garde-barriere est victime d'un viol. Dudu, un prince déchu, lui vient en aide et les deux jeunes gens tombent amoureux l'un de l'autre. Mais Mona est placée dans une maison close par madame Jullien. Dudu tombe également entre les mains de cette horrible femme. Il servira au plaisir des bourgeoises de la ville...