Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Santa slays!

Strong on plot and quite disturbing slasher film that creates a pretty plausible storyline about a young man who snaps at Christmas after seeing both parents brutally murdered. The abuse he suffers while in an orphange adds to his mental decline. This is probably the best in a series of Christmas horror films about a killer Santa. Another classic to check out is the original Black Christmas.