A man is imprisoned for a crime he didn't commit. When his wife is murdered and his son kidnapped and taken to Mexico, he devises an elaborate and dangerous plan to rescue his son and avenge the murder.
When his dysfunctional family clashes over the holidays, young Max is disillusioned and turns his back on Christmas. Little does he know, this lack of festive spirit has unleashed the wrath of Krampus: a demonic force of ancient evil intent on punishing non-believers.
In the hazy aftermath of an unimaginable loss, Sarah and Phil come unhinged, recklessly ignoring the repercussions. Phil starts to lose sight of his morals as Sarah puts herself in increasingly dangerous situations, falling deeper into her own fever dream.
Four interwoven stories that occur on Halloween: an everyday high school principal has a secret life as a serial killer; a college virgin might have just met the one guy for her; a group of teenagers pull a mean prank, and a bitter old recluse receives an uninvited guest.