Bad Kids of Crestview Academy (2017) online

It's four years later, and a new group of students has been placed in Saturday detention at good ol' Crestview Academy. After one of the kids locks away the teacher assigned to watch them, the five of them very quickly find their ranks dwindling as each meets with a gruesome "accident". They may make it out of the library, but with a new threat revealing itself, is there enough time and resources for at least one of them to make it out alive?