Night's Grip(2023)

At a high school, an art teacher asks students to make a horror-themed video project. The students get together as per the teacher's request and go to school at night to record a documentary about the legend of a haunting at the school where they study. In the middle of recording one of the colleagues ends up disappearing and the others split up to look for her. Starting a series of deaths that some believe to be the ghost of the legend, but discover that there is actually a killer among them.