This unusual revenge/horror film from the mid-1980s manages to be unpredictable. The story centers on four high school students in the Northeast who pull a prank on their biology teacher at her house one weekend, but what starts as fun quickly spirals into deadly danger. “Hell High,” filmed in 1985 and copyrighted in 1986, wasn’t actually released until 1989. It was also marketed under the names “Raging Fury” a…