Have you ever wondered what department store Santas do after a day of having whiny kids sitting on their laps? If so, "Bad Santa" reveals one possibility: they rob shopping malls after all the good little boys and girls go home. Santa and one of his elves by day. By night, they fill their sacks with stolen goods. This plan works well once a year, until they have a run-in with a shopping mall detective who wants in on the heist.