[2][3] The film stars Bela Lugosi[4] along with Suzanne Kaaren, Guy Usher, Yolande Mallott and the comic team of Dave O'Brien and Donald Kerr as the protagonists.

Embittered and insulted, he seeks revenge and develops a system in which ordinary bats are enlarged to massive size, training them to be drawn to a new, pungent aftershave he is testing.

A hot shot reporter from the Chicago Register, Johnny Layton (Dave O'Brien) gets assigned by his editor (Arthur Q. Bryan) to cover and help solve the murders.

Lugosi was beginning a comeback when he signed a contract on October 19, 1940, with PRC's Sigmund Neufeld to star in the Poverty Row studio's first horror film.

[8] PRC was known for shooting its films quickly and cheaply, but for endowing them with a plentiful amount of horror,[9] and The Devil Bat established this modus operandi.

In 2015 Indie filmmaker Ted Moehring directed the sequel Revenge of the Devil Bat,[14] which stars Lynn Lowry, Ruby Larocca and veteran actors Gary Kent, John Link, Dick Dyszel, George Stover, and Conrad Brooks.