Equinox

David Fielding, Susan Turner, Jim Hudson, and Jim's girlfriend, Vicki head into the woods to look for a lost scientist, Dr. Arthur Waterman. They find that Dr. Waterman's cabin seems to have been destroyed. A forest ranger, who is Asmodeus in human form, watches over them. A strange old man presents them with an ancient book filled with magical lore and symbols. A giant ape-like creature and a green-skinned, fur-clad giant are sent to retrieve the book from them.