Happily-married couple Dan and Jody begin to notice some bizarre activity once they bring their lost nieces and nephew home. But when the chaos expands into Jody's job as a ballet dancer and Dan's career as an Ape researcher, they realize their family is being stalked by a nefarious demon. Together, with the advice of a psychic and the aid of numerous surveillance cameras, they must figure out how to get rid of it before it's too late.