"Ruth Roland in her last role alongside Roland Drew in a mystery about murder, blackmail and stolen jewels."
Ruth Roland
as Cornelia Du Play
Roland Drew
as Inspector Vernon
Doris Covert
as Yvonne Balsac
Kenne Duncan
as John Sommerset
Eugene Sigaloff
as Schubin
Miriam Battista
as Toinette - the Maid
Arthur Stenning
as Det. Sgt. Williams
Alex Frazer
as Louis Mentone - Butler
Julian Gray
as Mr. Balsac - Yvonne's Father
George Temple
as Ivanov
Frederick Dodds Slade
as
Jerry Gowan
Gerald Rowan
Alex Michael
Cecil Nichol
M.R. Byatt
as Minor Role (uncredited)
Edgar G. Ulmer
Director
Shirley Ulmer
Script Supervisor
Robert Martin
Assistant Camera
Maurice Metzger
Sound
James W. Campbell
Production Manager
Lem F. Kennedy
Assistant Production Manager
Fred Govan
Art Direction
Harold Peberdy
Production Designer
Ross Pitt-Taylor
Editor
Alfred Jacquemin
Cinematography
Kenneth J. Bishop
Producer
William Steiner
Associate Producer
Original Story
Screenplay
Dialogue
