Pranks (aka The Dorm that Dripped Blood)

A group of 5 students stay away at college for winter break to help clean out an old dorm before it's demolition.  While all the other students are off skiing with their buddies or going over grandma's house for Christmas, these guys are there to clean up the old kitchen, take out the beds, and clear out desks.  Little do they know that some doesn't want them to get the job done, and strange happenings occur.  Is it the weird fuzzy headed resident, digging through the trash and avoiding them at all costs?  Is it the maintenance man who keeps asking about his missing drills, and likes to hang out in elevator shafts?  Maybe it's the creepy guy that's supposed to pay for and pick up all the old desks?  Or maybe... just maybe, it's one of the students themselves?  One thing is certain, and that is that there are some murderous Pranks going on.