The Devil Bat
Dr. Paul Carruthers is frustrated because he thinks his employers, Mary Heath and Henry Morton, have cheated him out of the company's profits. He decides to get revenge by altering bats to grow twice their normal size and training them to attack when they smell a perfume of his own making.
Bela Lugosi
Suzanne Kaaren
Dave O'Brien
Guy Usher
Yolande Donlan
Donald Kerr
Gene O'Donnell