In terms of plot, bad guy, and kills this could be considered a slasher - but in every other regard it's more like a downbeat made-for-tv drama/thriller. There's no zany goofball element and none of the fun-factor which characterises most slashers, and for that reason Night School never really amounts to much more than a fairly routine detective yarn with some added nastiness thrown in.
In fairness the killer's motivation is quite original (as is the twist), but even as an early 80s horror hound I can't imagine wanting to sit through this again.
In fairness the killer's motivation is quite original (as is the twist), but even as an early 80s horror hound I can't imagine wanting to sit through this again.