When young Max is disillusioned by his dysfunctional family and turns his back on Christmas, he unleashes the wrath of Krampus: a demonic force of ancient evil intent on punishing non-believers. All hell breaks loose as beloved holiday icons take on a monstrous life of their own, laying siege to the fractured family's home and forcing them to fight for each other if they hope to survive. © 2015 Universal Studios. All Rights Reserved.