Le Mystérieux Monsieur Sylvain

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Synopsis

In an aero-naval base, a marine engineer who was about to deliver the name of a redoubtable spy is murdered. Shortly afterwards three different men appear on the crime scene, each of them claiming to be Monsieur Sylvain, the expected sleuth. But which of the three investigators is actually Sylvain? And what about this delightful young lady who arouses one of the police inspectors? Couldn't she be the murderous spy?

Cast

Frank Villard
Ancelin
Simone Renant
Françoise Dastier
Jean Chevrier
Chantenay
Jean Marchat
Morgat
Marcelle Praince
The marquise
André Bervil
The killer

Le Mystérieux Monsieur Sylvain

Synopsis

Cast

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