The movie centers around the lives of Brad and Abby Cairn, an affluent young stockbroker and his wife, raising children in New York City. Their firstborn, the nine-year-old Joshua (Jacob Kogan) is a frighteningly intelligent child - to such a degree that he thinks and acts decades ahead of his age. Nearly always clad in formal wear and demonstrating limitless brilliance as a pianist - with a marked predilection for "dissonant" classical pieces - Joshua gravitates toward his gay aesthete uncle (Dallas Roberts) as a close friend, but distances himself from his immediate kin - particularly when Abby brings a newborn baby sister home from the hospital and unwisely alienates the young boy. As the days pass, one at a time, the mood at the house regresses from healthy and happy to strange, unsettled and disorienting; meanwhile, bizarre events transpire. As the baby's whines drive an already strained Abby to the point of a nervous breakdown, Joshua devolves from eccentric to downright sociopathic behavior, discarding all of his toys, disemboweling a stuffed animal, and killing off pets. Eventually, family members also begin to suffer tragic fates - but the question of whether or not they are Joshua's fevered and psychotic doings or merely the result of happenstance is not answered until the shocking conclusion. It seems all he wanted was to be with his uncle.

• Official Movie Web Site