help me find this movie

[ona_666]

Ok so there is this kid like 14 years old som like that, and one time at an event in his house he just randomly finds a dress in his mothers room i think and puts it on. Then he puts on makeup and shit. His stepdad finds him and sends him to a church school with like 5 children or som. All of the kids are kinda messed up mentally. There is also a girl that saw him wear the dress at his house in the event and she thougjt he was beautiful and was kinda crazy abt him and all that psycho shit. Turns out the priest was paid from everyones parents to kill the kids since theyre messed up and all. The kid from the beginning finds the priest just pouring gasoline in the churh while the others were asleep. They kinda make a pact to work with each other but then som happens and the kid slices his forehead or some and he starts bleeding. Since that other girl tried to kill all the other kids in the church this kid locks her in her room and burns her with a couple of other kids bodies

[Slaughterhouserock]

Boarding School