Silent Night, Bloody Night (movie 1972) Yikes

Tis the season. Every Christmas I watch Christmas-themed horror movies. The good, the bad, and the ugly.
This cult classic definitely falls into the latter two categories.
The frustrating thing is that there's a really decent and creepy plot here, buried under truly awful writing and, especially, directing.
Yes, it's a low budget movie, but there are plenty of those who don't look like that. It isn't stylistically defective on purpose, such as shaky camera work in the Blair Witch. This is straight up low quality. The movie is cobbled up together out of overnarration, scenes barely visible for how dark they are, and shoddy editing. Too much of all to be explained by production snafus alone.
It stands to wonder if this was meant to be an art project - the kitschy cast certainly suggests it. 
The movie has been since referred to as a granddaddy of slasher genre and rightly so. One merely wishes the granddaddy wasn't such a freaking mess.
Watch at your discretion. It is mercifully short, though feels longer.