Evil Haunt

A tiny house in Murrieta, CA is possessed by an ancient evil that obeys most of the year and stays locked with the confines of its walls, a temporary veil between the dead and the living. But once a year on Halloween night, the evil trapped in purgatory escapes to feed on the young blood of innocents walking the streets looking for a treat.

What's the only way to keep these rotting flesh eaters from plaguing the rest of the world? Trick, and, or, Treat.