The Janitor

This is a story about an old janitor who only wanted to work so that he could one day make life better for himself, but Jason, the school bully, and his friends had other plans for the janitor. They would tease and mock him by playing jokes and pranks, as they had done to many other janitors before. And this time, it was supposed to be all fun and games, until one day it went too farthe janitor died.
Now Jason and his friends had a price to pay, soul for soul, because hell had let loose an evil spirit on Jason and the school.
Could the janitor be stopped, or would he have his revenge?