Holiday horror has officially moved from the month of October to the chillier air of the Christmas season. Genre fans making their 31 Days of Horror list during Halloween can just as easily come up with 25 scary movies to watch every day in December. This year, Joe Begos ("The Mind's Eye," "Bliss") and company added "Christmas Bloody Christmas" to the growing pile of Yuletide horror found underneath the VHS tree. Call it "Xmas-ploitation" if you must. In what's essentially a non-stop chase...