Set in 19th-century New York, this mystery begins when a Frenchwoman shows up at the home of one of Napoleon's former marshals. The alcoholic man is badly crippled and slowly dying, but this doesn't stop the forthright lady from pushing him to change his will to include his estranged grandson so that he can help out the struggling French Republic. Unfortunately, the dying man's conniving housekeeper and butler, already planning murder to get the money themselves, overhear her and begin plotting her demise.
Joseph Cotten
as Dupin
Barbara Stanwyck
as Lorna Bounty
Louis Calhern
as Charles Theverner
Leslie Caron
as Madeline Minot
Joe De Santis
as Martin, the butler
Jim Backus
as Flaherty
Margaret Wycherly
as Mrs. Flynn, the housekeeper
Richard Hale
as Durand, the lawyer
Nicholas Joy
as Dr. Roland
Roy Roberts
as Policeman
Mitchell Lewis
as Zack, the waiter
Jean Inness
as Landlady
