A high school slacker who's rejected by every school he applies to opts to create his own institution of higher learning, the South Harmon Institute of Technology, on a rundown piece of property near his hometown.

A total re-edit of Mario Bava's gothic classic Lisa and the Devil (1973) for US release in 1975. Cheesy exorcism scenes were shot to try to capitalize on the success of The Exorcist (1973).

Howard is mild-mannered and slightly simple-minded, with a habit of picking up teenage hitchhikers while driving his delivery routes. Sometimes the girls admit to being runaways, and if they claim to hate their mothers it drives Howard into a violent frenzy; his sister ran away from home years ago and was never heard from again, causing his desperate, addled mother to tighten her hold on him. Howard never remembers raping his victims or strangling them with wire coat hangers, though his boss does notice missed deliveries and late arrivals.

In a world where sorcery and science co-exist, the power of magic comes with a price: Humans who do not take proper precautions are transformed into horrific demons. Those who destroy these demons - and run the highest risk of all - are tactical sorcerists known as Strait Jackets.