Grindstone

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. Watch Grindstone in HD free online now on MyWatchSeries with multiple servers and instant playback. Enjoy high-quality streaming of Grindstone and share your thoughts in the comments below!