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. He mixes the perfume into a lotion, which he offers as a gift to Mary and Henry. When they turn up dead, a newspaper reporter decides to investigate.
The Devil Bat is a 1940 black-and-white American horror film produced by Producers Releasing Corporation (PRC) and directed by Jean Yarborough. The film stars Bela Lugosi along with Suzanne Kaaren, Guy Usher, Yolande Mallott and the comic team of Dave O'Brien and Donald Kerr as the protagonists. It was the first horror film from PRC.
