Like the other reviewers here, I stumbled across this movie in one of the Mill Creek/Pendulum Pictures Box Sets. Namely the "Tombs of Terror" set that comes with many other masterfully terrible films, such as The Vulture's Eye or The Traveler (that one I actually enjoyed admittedly). The Devil's Moon is not quite as terrible as The Vulture's Eye and not quite as enjoyably zany as The Traveler. But it does have its enjoyably terrible qualities worth a bad film aficionado's time.
A guy gets fired and dopes around a bit. The lady that fired him is kidnapped by a serial killing necrophiliac. The guy that got fired and his ex boss and Serial Killing Necrophiliac all end up in the woods together and it becomes a fight for survival. Unbeknownst to them, a small coven of goth girls/witches, in the same forest, summon up a demon baby and all hell breaks loose.
The problems with this movie are many. The worst offenders being the sound and the dark and murky picture. The sound is quite literally all over the place. I made the mistake of turning the volume up at the beginning of the film only to immediately regret it. Whenever a woman screams it gets so loud that it might just blow out your speakers, and your ear drums. As for the picture quality, it is absolutely atrocious. I can tolerate grainy, digitalized picture. But it is hard to tolerate it when it is so dark even turning the brightness up on the TV won't work. It's a struggle to get through when all the best moments are in the darkness.
Having said that, there are some hilariously terrible moments in the movie that should make someone either chuckle, or turn the movie off outright. Such as the demon baby scene. It bursts out like an Alien Chestburster, and proceeds to fly after and attack one of the goth girl witches. It's the best moment in the movie, actually...
Look, giving this movie a 5 out of 10 is very generous. But in comparison to many of the other films in this set, I think 5 is pretty appropriate. Look for Trent Haaga of Troma fame as Cletus, one of the random rednecks thrown into the film to help pad out the runtime.