A Cadaver Christmas (2011)

Plot

A peculiar group finds themselves in a nightmarish situation during the holidays. Joined by a janitor, a drunken patron, a bartender, a police officer with his captive, and a student security guard, they must confront the sinister consequences of a professor’s experiment gone wrong. As a dark power wreaks havoc in the cadaver lab, the motley crew becomes humanity's last line of defense against a growing horde of reanimated corpses. With the undead gaining life, it's the janitor's responsibility to restore the natural order and reclaim the Christmas spirit.