Ventriloquist and world traveler Gordon Cobb is murdered by a gang of jewel thieves. Baffled by the contradictory clues, Inspector Queen asks his son, Ellery, to help out.
Ralph Bellamy
as Ellery Queen
Margaret Lindsay
as Nikki Porter
Charley Grapewin
as Insp. Queen
Noel Madison
as Gordon Cobb
Ann Doran
as Sheila Cobb
James Burke
as Sgt. Velie
Anna May Wong
as Lois Ling
Eduardo Ciannelli
as Count Brett (as Edward Ciannelli)
Frank Albertson
as Sanders
Charles Lane
as Doc Prouty
Russell Hicks
as Harry Walsh
Tom Dugan
as McGrath
