Killer Bats (Aka The Devil Bat)

Bela Lugosi, Dave O'Brien, Suzanne Kaaren, Guy Usher, Donald Kerr.

69 mins B&W 1940

Lugosi is a chemist whose backstabbing business partners cheat him out of some profits. To get even, he develops a race of mutant bats, training them to attack wearers of a certain chemical, which he mixes into a shaving cream. Dir. Jean Yarbrough