Prom Night IV (1991)

High school is such a tough time on a young lady. The hormones are raging. The campus popularity contest is an emotional minefield. Your best girlfriend is a slut. Her boyfriend is a dunce. Your own beau is nice, but will he ever work up the balls to make a move? And then just when everything seems perfect--you’re ensconced in this cozy remote farmhouse with three other horny teens, wiling away the hours until sunrise after prom night, and your boy toy is finally acting like a man--Boom! Some nasty old psycho killer breaks loose and tears through your love shack, cutting everybody down. In Prom Night IV: Deliver Us from Evil (1991), the slashing wacko is a renegade priest who has come out of a thirty-year drug stupor after slicing up a pair of humping teenagers two generations back. Will kids these days have a trick or two to teach the old freak?