Private Detective Philo Vance gets involved with a succession of murders and a mystery concerning the disappearance of an emerald that has been smuggled into the United States.
Philo Vance
Laurian March (as Terry Austin)
Ernie Clark
Tina Cromwell
Oliver Tennant
Inspector Walsh
Lt. Burke
Geegee Desmond
Roberts
Ellis Mason
Charles O'Mara
Willetts
Guy Harkness
Norma Harkness
Jeffrey Connor
Pat Roberts
Alberto the Costume Designer (uncredited)
Original Music Composer
Writer
Producer
Editor
Director of Photography
Director
Story
Screenplay
Music Director
Assistant Director
Set Decoration
Sound
Art Direction
Sound
Costume Design
Characters
Supervising Editor
Set Decoration