Constance

Constance Nebbercracker (formerly known as Constance the Giantess or known as the Monster House) is a posthumous character and the titular main antagonist of the 2006 computer-animated film, Monster House. She was a human performing as a "circus freak" in a circus until Horace Nebbercracker saved her and married her. During the construction of their house, her sudden untimely death occurred due to falling into the basement and getting covered in wet concrete, after which she took possession of the house instead of going to heaven, which developed monster-like characteristics. She is also the arch-nemesis of DJ, Jenny and Chowder.