The benefactor of the Stack Memorial Hospital dies after an operation. Ellery Queen investigates when it is revealed the cause of death was murder by strangulation.
Genres:
Ralph Bellamy as Ellery Queen
Margaret Lindsay as Nikki Porter
Charley Grapewin as Insp. Queen
Mona Barrie as Nurse Marian Tracy
Paul Hurst as Page
James Burke as Sgt. Velie
Leon Ames as John Stack
George Zucco as Dr. Edwin L. Jannery
Blanche Yurka as Mrs. Augusta Stack
Charlotte Wynters as Miss Fox
Tom Dugan as Lou Thomas
Olin Howland as Dr. Williams
Dennis Moore as Dr. Dunn
Jean Fenwick as Alice Stack
Pierre Watkin as Crothers
Byron Foulger as Hospital Orderly (uncredited)
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