A beautiful young woman travels to a remote estate to seek employment as a biochemist for Baron Janos Dalmar. She finds herself attracted to him, so immerses herself in her work to suppress her lusty desires. A rash of rather brutal murders occurs in the area and she soon discovers that the Baron is not what he seems. Not long thereafter, the Baron transforms into a demon, and the beautiful young woman becomes his very own love slave.
Five carpoolers travel in a motorhome to reach a common destination. Night falls, and to avoid a dead animal carcass, they crash into a tree. When they come to their senses, they find themselves in the middle of nowhere. The road they were traveling on has disappeared and there is only a dense, impenetrable forest and a wooden house in the middle of a clearing, which they discover is the home of a spine-chilling cult.