This entry in the Crime Does Not Pay series focuses on the U.S. Food and Drug Administration's effort to ensure that drugs are fully tested before they are sold to consumers. Two unscrupulous investors market the drug 'Diabulin' as a substitute for insulin after preliminary tests show good results. After a short time, however, users start dying from the drug. The FDA and the state attorney general's office then go after the drug marketers.
Byron Foulger
as Dr. Laren aka Dr. Dibson
Dick Elliott
as Judge Gilmenn
Morris Ankrum
as Dr. Adams (uncredited)
Paul E. Burns
as Janitor John Billings (uncredited)
Edward Earle
as Judge (uncredited)
Franklyn Farnum
as Radio Station Man in Studio (uncredited)
Frank Fenton
as Chester Malton (uncredited)
William Forrest
as Dr. Cooper (uncredited)
Selmer Jackson
as Darles F. Peters (uncredited)
Paul Langton
as Mr. Winthrop (uncredited)
