Grindstone

Grindstone (2022) is a horror directed by Korina Hušnjak rated 0.0/10.

One evening, a group of high school graduates gather on their school playground, they talk, play games and drink alcohol. Feeling bored, they decide to break in the school. Stories of the creepy janitor scare the girls but the boys manage to persuade them. What started as innocent fun ends in a bloodbath when one of the students turns the night into a horror movie.