A young reporter solves a mystery crime. The fictional reporter is Joseph Rouletabille. He works on a complex, and seemingly impossible, crime in which the criminal appears to disappear from a locked room.
as Joseph Rouletabille
as Professeur Stangerson
as Sylvie
as Père Jacques
as Larsan / Ballmeyer
as Arthur
as Robert Darzac
as Mathilde Stangerson
as Julien
as Le secrétaire
as La cuisinière
as La femme de chambre
as Marquet