Ivan Agar

An anthropology professor has invited his class to a remote cabin in the mountains to research the mythical Abominable Snowman. Soon after they arrive, strange events begin to befall the students, including sightings of a huge, white, furry creature.

Terry and Ann are two "swingers" who spend the night in a spooky old house, where they're subjected to bizarre sexual experiments by Mr Bradley and his deranged sister.