I love holiday horror films. To me, they demonstrate the genre's ongoing commitment to ruining even the happiest of occasions with visions of nightmarish terror. There was a time when Halloween was the only holiday associated with evil and darkness and that set it apart as the isolated capsule of fear. But then, one by one, the other, more joyful holidays became targets for horror interpretations. It's gotten to the point that no festive celebration is without its own signature slasher or identifiable bloodbath.
For today's seasonal slaughtering, we celebrate Labor Day with Rosemary's Baby.