Eddie is homesick for Transylvania, so Herman decides to throw him a Christmas celebration. Together, with Lily, Grandpa, and Marilyn, the gang sends out invites to the whole Munster family. To help throw the party, Herman asks for a raise from his boss. His boss says no and instead fires him for taking on freelance work that included nude modeling and wrapping presents. Meanwhile, Grandpa conducts an experiment that goes badly and accidentally transports Santa Claus and his elves to Munster Mansion. Eventually, Marilyn falls in love, and Lily enters a decorating contest. It's all insanely convoluted and not rewarding in the slightest.