Amateur sleuth Ellery Queen learns the truth about a businessman's two long-lost daughters.
James P. Hogan
Director
William Gargan
Ellery Queen
Margaret Lindsay
Nikki Porter
Charley Grapewin
Insp. Queen
Ralph Morgan
Alan Rogers
Kay Linaker
Margo Rogers
Edward Norris
Stewart Cole
James Burke
Sgt. Velie
Addison Richards
Lester Younger
Charles Judels
Corday
Andrew Tombes
Bates
Claire Du Brey
Housekeeper
Micheline Cheirel
Marie Dubois
Ben Welden
Fisherman
Milton Parsons
Butler
Charles Lane
Coroner
