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.
Ellery Queen
Nikki Porter
Insp. Queen
Nurse Marian Tracy
Page
Sgt. Velie
John Stack
Dr. Edwin L. Jannery
Mrs. Augusta Stack
Miss Fox
Lou Thomas
Dr. Williams
Dr. Dunn
Alice Stack
Crothers
Hospital Orderly (uncredited)
