;Foreword Dr. Paul Carruthers, a chemist and physician in the small town of Heathville, is offered a $5,000 bonus from his employers for his contributions to the company, a pittance compared to the million dollars in income the company earned from his work. 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. He cleverly distributes the lotion to his enemies as a "test" product. Once they have applied the lotion, the chemist then releases his Devil Bats in the night, targeting the families of his employer's owners. The bats succeed in attacking and killing one of the owners and two of his sons. A hot shot reporter from the Chicago Register, Johnny Layton gets assigned by his editor to cover and help solve the murders. He and his bumbling photographer "One-Shot" McGuire begin to unwind the mystery with some comic sidelights. In the climactic closing scene, Layton dumps a sample of the aftershave on Carruthers, leading the bat to attack and kill its own master. Mary, the last surviving member of her family, runs into Johnny's arms.
PRC was a young studio when it planned to enter the horrorfilm genre, which had been neglected by the major studios during 1937 and 1938. 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. The shooting of the film began a little more than one week later. PRC was known for shooting its films quickly and cheaply, but for endowing them with a plentiful amount of horror, and The Devil Bat established this modus operandi.
Current status
Following its theatrical release, The Devil Bat fell into public domain and since the advent of home video, has been released in countless truncated, poorly edited video and DVD editions. In 1990, the film was restored from original 35mm elements by Bob Furmanek and released on laserdisc by Lumivision. In 2008, Furmanek supplied his original elements to Legend Films, which performed a new restoration and also created a computer-colorized version. Both the restored black-and-white and colorized versions were subsequently released on DVD. In 2013, The Devil Bat was released on Blu-ray by Kino Lorber under its Kino Classics label.
Reception
The film was re-released in 1945 on a double bill with Man Made Monster. The Los Angeles Times described the duo as "two of the scariest features on the market." In the book Poverty Row Horrors!, Tom Weaver judges The Devil Bat as one of Lugosi's best films for the poverty row studios.
