Krampus' Castle is the Bavarian home to the Krampus, a counterpart to Santa Claus who punishes naughty children.

In "Minstrel Krampus", the Krampus convinces Stan Smith to free him after being trapped by Jack Smith, only to kidnap Steve and take him to his castle to spank him. Steve is comforted by the household items who convince him that the Krampus only punishes children to mend their ways, not for his own personal enjoyment.

Meanwhile, Stan frees Jack from prison to help him, only for Jack to take off, leaving Stan to enlist Santa Claus who still bears a grudge after the events in "For Whom the Sleigh Bell Tolls". Despite the animosity, Santa agree to help on the condition that they kill the Krampus. Staging a raid on the castle, Santa and his elves kill the household items and Krampus, before Santa turns the gun on Stan intending to kill him as well. Stan is saved by Jack who had a change of heart and takes the bullet meant for Stan. As his and the Krampus' blood intermingles, Jack is transformed into the new Krampus.

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