A handsome young couple finds the perfect live-in babysitter to look after their newborn child. It seems like a fairy tale, until ancient, super-natural forces turn the couple's dream into a nightmare. In his first horror film since The Exorcist, Oscar-winning director William Friedkin spins a terrifying tale based on every parent's worst fears. Jenny Seagrove portrays the enchanting guardian, who enters the home of new parents Dwier Brown and Carey Lowell possessing impeccable references and an affinity for children. But as her true intentions are revealed, the battle for the child's soul begins in this chilling film based on Dan Greenburg's popular novel, The Nanny.