A professor comes up with a system to win at roulette, and goes to the famous casino at Monte Carlo to try it out. When he turns up murdered and his "system" missing, a reporter sets out to find the killer--and the system.

Reparto

Errol Flynn

Dyter

Eve Gray

Gilian

Paul Graetz

Dr. Heinrich Becker

Molly Lamont

Margaret Becker

Ellis Irving

Marc Orton

Laurence Hanray

Collum

Henry Victor

Major

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Reparto

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