Villain(s)  Demonic creatures

Actor(s):  Edward Connell, Barbara Hewitt, Frank Bonner, Robin Christopher

Brief Description  Equinox (1970) is an American low-budget supernatural horror film celebrated as a pioneering amateur achievement and an essential cult classic. Directed by Jack Woods and an uncredited Dennis Muren, the film follows four young adults who unleash ancient, devastating demonic forces after discovering a forbidden text in a secluded California canyon. Made on a shoestring budget by a group of passionate teenagers, it served as a major stepping stone for future Hollywood special effects icons and laid the narrative foundation for iconic horror franchises like The Evil Dead.

Plot:
The narrative is framed as a flashback recounted by David Fielding, the lone, traumatized survivor of a horrific ordeal confined to a psychiatric asylum. David and his friend Jim, accompanied by their dates Susan and Cathy, travel into a remote California canyon to visit their geology professor, Dr. Waterman. Upon arrival, they find the professor's cabin completely destroyed. Exploring further into the wilderness, they encounter a delusional old cave-dweller who hands them an ancient, mystical book packed with occult symbols and demonic lore.

As the teenagers inspect the text, they accidentally read its incantations aloud, breaching the barrier between the human world and a malevolent parallel dimension. The group is soon terrorized by an escalating onslaught of supernatural threats, including a giant blue ape-like beast, a green scaled monster, and a winged demon. Complicating their survival is Ranger Asmodeus, a local park official who reveals himself to be a powerful, disguised devil intent on reclaiming the book. One by one, the teenagers are possessed or brutally killed, leaving David to flee for his life as the dimension collapses around him.