A rich but naive young woman is in possession of some priceless jewels. She herself doesn't know it, but a gang of jewel thieves does.
Charles Korvin
as Arsene Lupin
Ella Raines
as Stacie Kanares
J. Carrol Naish
as Ganimard
George Dolenz
as Dubose
Gale Sondergaard
as Bessie Seagrave
Miles Mander
as Charles Seagrave
Leyland Hodgson
as Constable Ryder
Tom Pilkington
as Pollett
Lillian Bronson
as Wheeler
Holmes Herbert
as Jobson
Charles La Torre
as Inspector Cogswell
Gerald Hamer
as Doc Marling
