A mad scientist uses captured criminals as experiments for his study on "the criminal mind" aboard his private ship.
Lt. Bob Bennett
Dr. Herbert Stander
Joan Martel
Poison Mary Slavish
Dirk - Stander's Aide
Harry 'The Carver' Bogard
Paul - Stander's Aide
John Ritter
Capt. Mike Briggs
Jesse Bixel
Reporter
Adolph Krantz
October 28, 1939
Lt. Bob Bennett
Dr. Herbert Stander
Joan Martel
Poison Mary Slavish
Dirk - Stander's Aide
Harry 'The Carver' Bogard
Paul - Stander's Aide
John Ritter
Capt. Mike Briggs
Jesse Bixel
Reporter
Adolph Krantz