It's not totally out of the realm of possibility. Santa Clause himself is known to have been the star of some freaky German fairy tails featuring pickled children and sacks of heads. So to think that the character “Jack Frost” is actually a nose-eating serial killer is sort of in line with the origins of the holiday season anyway. Throw in the fact that there are at least two Jack Frost themed horror movies starring a killer snow man, and you've got a recipe for a dark tale of almost reasonable…