Where to Watch A Cadaver Christmas (2011)

Summary

United by terrifying and bizarre circumstances, the janitor, the drunk, the bartender, the cop, his perp, and the student security guard must fight to undo the professor's work. A dark force is at work in the cadaver lab this Christmas and this unconventional band of heroes are the only hope the world has against an army of living corpses that are quickly recruiting new members. The undead have been given the gift of life and it's up to the janitor to take it back.