Twin terror teens Victor and Ivy Plotz live in the "ghoul-est" house in the neighborhood, along with hundreds of animatronic roommates. The year-round haunted house attraction has been the family business since before they were born; however, when a thunderstorm knocks out the power and the robots go offline (as well as an attempted theft from a living intruder), they must use all the tricks they've learned to make it thru the night.