Night School. The police investigate when a number of students at a local all-female college start getting their heads chopped off. This 1981 flick is more whodunnit than horror or slasher really, despite having a couple of effective deaths, but is very plodding and honestly I correctly identified the killer 40 minutes in - like 35 minutes before the reveal - so I guess it wasn't a very good mystery either. Fairly mediocre.
