Crime Mystery
In the 7th film of the "Crime Doctor" series based on the radio program, Dr. Robert Ordway is summoned to take attend a diabetic, and gives an injection of insulin taken from a bottle in the patient's pocket. The man dies and Ordway discovers that what he thought was insulin was really poison. Oops! Two other people are murdered before Ordway discovers who replaced the insulin with poison and what the motive was
Directed by
William Castle
Charles Arnt
Attorney Allen S. Tobin (uncredited)
Charles Lane
Dr. Steiner (uncredited)
Marvin Miller
Casper
Martin Kosleck
Karl Ganss
Byron Foulger
Harris, Makeup Man (uncredited)
Irene Tedrow
Nurse Florence White (uncredited)
Robert Barrat
Clyde Travers (as Robert H. Barrat)
George Meeker
Walter Foster (uncredited)
Warner Baxter
Dr. Robert Ordway
Wilton Graff
Alexander 'Alec' Girard (uncredited)
Thomas E. Jackson
Walter Cummings (uncredited)
Craig Reynolds
Jack Swayne (uncredited)
Ted Hecht
Armand Morcel (uncredited)
Mona Barrie
Harriet Travers
Charles D. Brown
Insp. Burns
Egon Brecher
Dr. Evans (uncredited)
Skelton Knaggs
Louie (uncredited)
Walter Soderling
Tobin's Servant (uncredited)
Peggy Converse
Connie Day (uncredited)
Adele Roberts
Claire Foster (as Adelle Roberts)
Jack Deery
Party Guest (uncredited)
Brick Sullivan
Policeman (uncredited)
Eric Wilton
Party Guest (uncredited)

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