A Creature was Stirring

As a Christmas blizzard rages outside, Faith, a nurse, keeps her daughter Charm locked in her room, injected with "holiday cheer," methadone, to sustain a delicately balanced fever--"treatment" for a mysterious affliction. When drifters Kory and Liz break in seeking shelter, they quickly discover that Faith's relationship with Charm stretches the limits of dysfunction, and both of them are concealing the malevolent fifth houseguest lurking in the shadows. Hint: it ain’t Santa.