A woman and a man vying for a woman's affection: the usual love trio? Not quite so since the belle in question is Lorraine de Grissac, a very wealthy and alluring society woman, while one of the two rivals is none other than Arsène Lupin, the notorious jewel thief everybody thought dead, now living under the assumed name of René Farrand. As for the other suitor he is an American, a former F.B.I. sleuth turned private eye by the name of Steve Emerson. Steve not only suspects Farrand of being Lupin but when someone attempts to steal a precious emerald necklace from Lorraine's uncle, Count de Brissac, he is persuaded Lupin is the culprit. Is Emerson right or wrong? Which of the two men will win over Lorraine's heart?
Director
George Fitzmaurice
Melvyn Douglas
Rene Farrand aka Arsene Lupin
Virginia Bruce
Lorraine de Grissac
Warren William
Steve Emerson
John Halliday
Count de Grissac
Nat Pendleton
Joe Doyle
Monty Woolley
Georges Bouchet
E. E. Clive
Alf
George Zucco
Prefect of Police
Rollo Lloyd
Duval
Vladimir Sokoloff
Ivan Pavloff
Ian Wolfe
A. Le Marchand - Detective (as Ien Wulf)
Tully Marshall
Monelle
Jonathan Hale
F.B.I. Special Agent
George Davis
Guard at Dock (uncredited)
King Baggot
Detective (uncredited)
US
