Happily-married couple Dan and Jody begin to notice some bizarre activity once they bring their newborn baby Aiden home from the hospital. 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 certified experts and the aid of numerous cameras, they must figure out how to get rid of it before it's too late.