The Devil Bat

When a brilliant scientist, Dr. Paul Carruthers, develops an ingenious product and is cheated out of his fair share of the profits by his greedy partners, Roy Heath and Don Morton, Carruthers decides to use his brain rather than brawn to get vengeance. The scientist turns his laboratory of science into one of doom as he creates a giant race of bats that turn into ripping and shredding beasts of fury when they catch wind of a particular scent that Carruthers puts into a special cologne and aftershave. Now armed with his killing machines, the good-scientist-gone-bad has the power to kill at will with his mutant bats doing his bidding. The families of Carruthers' partners are his first targets, but Heath and Morton's time is going to come. And when it does - it won't be pretty...