Films: Drainiac! (2000)
Location: Haunted home
Height/Weight: Ranges from that of small dogs to being incomprehensible.
Summary: Demons in your house? Hire an exorcist. Demons in your drainage pipes. Well, hire and exorcist who might just so happen to be a plumber as well. We don't know. That's our best advice.
History: Somewhere in a rather derelict house, there is a dark evil lurking within every conceivable area of available water. Horrific demons and monsters await in the depths, looking for victims to possess, destroy, and eat. And a recent group of young folks sounds like the ideal meal for them.
Notable Kills: Anytime you see a bunch of tentacles burst out of a bathroom, things are going to get messy.
Final Fate: Eventually, the survivors engage in ritual to banish the demons, and after perhaps one of the trippiest and insane exorcisms we've ever seen, the house destroys itself and sends the beings back to where they came.
Powers/Abilities: Most of the demons produce a horrific goo that liquifies flesh. They can also possess and absorb the dead.
Weakness: Only exorcising rituals stand a chance of pushing back these creatures.
Scariness Factor: 4-It seems that they just wanted to throw every conceivable demon trope at us all at once. And you know what? It almost works. From eldritch powers to some rather freaky stop-motion beasts (to say nothing of the wall of skulls), this is one haunted house that'll leave you bloody and rather filthy as well.
Trivia: -Ironically, the house this film was done in had no running water to speak of. After all was said and done, it was torn down.
-For some reason, they decided to film the Wall of Ghost sequence on Christmas Eve. Coincidental scheduling or an attempt to wreck the holiday spirit? You decide.