Granny  (1999)

Theatrical Release Information:
Granny

Eight college friends get together in a remote house for an overnight reunion but find their fun ruined by a psycho killer dressed as an old lady. "Granny" has a gift for making college-educated young adults venture into rooms alone even after the mayhem has begun -- is it because she is so smart or is it because none of the kids has ever seen a modern horror movie? In any case, Granny gets to slash, suffocate, and hang the friends one at a time until only Kate Dugan survives. This, of course, leads to a showdown between the mystery killer and brave Dugan -- who's not up for it and is, literally, scared to death. But then there's a twist . . . . ~ Buzz McClain, All Movie Guide