The Wishbone family is far from happy. With a struggling bookshop, an overworked husband, and two misunderstood teenagers, Emma is at her wit's end trying to be the perfect mom. After dragging her family to a costume party on Halloween night, they are cursed by an evil witch and transformed into a vampire, a mummy, a werewolf, and Frankenstein's monster. Now Emma will fight to keep her monster family together and uncover the secret of their curse....