A person who had usurped the identity of a famous writer of detective stories was killed in the train. Why and by whom?
Cast:
Renée Saint-Cyr, Henri Guisol, Pierre Renoir, Michel Vitold, Raymond Bussières
Production:
La Société des Films Sirius
Clarisse Coquet
Armand Le Noir
Charles de Bruine
Nazarian
Griset
Avril
Mademoiselle Malvina
Léopold
Pincet
Francis
Philosopher
Le Noir's concierge
Commissioner
Traveler
