Monster House is about three young boys who discover that their neighboring house is actually a living creature that wants to harm them. Despite this, no adults believe them, and so they must find a way to destroy the structure before the trick-or-treaters are put in danger. Steve Buscemi, Maggie Gyllenhaal, Mitchel Musso, Spencer Locke, Sam Lerner, and more lend their voices for this animated film.