#1553 Silent Night, Deadly Night on imdb:
A child witnesses his parents' murder by a man in a Santa suit. Years later, as an adult, he dons a Santa costume himself and embarks on a violent quest for retribution against those responsible for the traumatic event from his childhood.
A pitty there were no Angels for obvious sneak reasons, if you catch my drift! Silly yes, gory, well, regular, not on a level I'd say it's too much, so In think the better title could be: Silly Night, Gory Night 