When neighborhood kids begin vanishing, Jenny (Lolita Davidovich) suspects her child psychologist husband, Carter, may be resuming the deranged experiments his father performed on Carter when he was young. Now, it falls to Jenny to unravel the mystery. And as more children disappear, she fears for her own child's safety. John Lithgow plays creepy multiple roles as Carter, his evil twin and their father in director Brian De Palma's wicked shocker.