Overview

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, Simone Renant, Jean Chevrier, Jean Marchat, Marcelle Praince, André Bervil, Marcel Raine, Paul Amiot

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Frequently asked

What is "Le Mystérieux Monsieur Sylvain" about?

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?

When was "Le Mystérieux Monsieur Sylvain" released?

Le Mystérieux Monsieur Sylvain was released in 1947.

Who stars in "Le Mystérieux Monsieur Sylvain"?

The cast includes Frank Villard, Simone Renant, Jean Chevrier, Jean Marchat.