With the assistance of his trusty bats Beyyyla sets out to take revenge on his megalomaniac corporate employer. Need I say more?

If nothing else, the film does offer the enviable opportunity to hear Lugosi bellow to one of his inferiors, "Imbecile! Bombastic ignoramus!"

Horror fluff noted for Lugosi starring role.

It's very simple. You want Lugosi to be a vampire again, but you don't want to rip off the success of Dracula. How do you do it? Make Lugosi a doctor who experiments on bats that he trains to go out and kill people at night for him. Oh, and you might not want to call it a vampire bat... that would be too obvious. To me, that pretty much sums up The Devil Bat. It's an attempt to capitalize on Lugosi's legacy as the most famous vampire in the history of cinema. Lugosi actually gives a great performance in the film, but the film's has some very broad humor mixed in that sort of destroys any sense of atmosphere it might have. There are two newspaper reporters who are constantly handing out one liners while they investigate the murders taking place. It's very silly at times, but it somehow works well enough for what it is. It isn't anything particularly scary, but it's enjoyable to an extent. It's good for Lugosi's performance, that much is certain.

I don't know why Lugosi couldn't have just been a vampire again, but I suppose this is supposed to be a variation on Dracula somehow. I don't know, but this was actually a good movie, and Lugosi is always cool.