Shot on location in Paris, Monte Carlo and the Riviera with both American and French actors. When Matthew Versigny discovers that the jewels his diamond company has been buying are fake, he travels to Europe to track down the counterfeiter. With him are his sister, Marguerite and her sweetheart, Paul Bernac, who is an agent in the French Secret Service.
Robert Elliott
as Matthew Versigny
Lucy Fox
as Marguerite Versigny
Henry G. Sell
as Paul Bernac
Léon Mathot
as Arthur Graves
Jacques Volnys
as Trazi d'Aricola
Laurent Morléas
as Andre Zarnoff
Fernand Mailly
as Baron de Lambri
Charles De Rochefort
as Le juge
Marcel Lévesque
as Pigeon
Louis Monfils
as
Ruth Hunter
as Esther Taylor
