What happens when you open your home to the perfect stranger? Anna Klein is ready to return to work as a literary agent for the first time since having children. She and her husband, Josh, decide to hire a live-in nanny with some trepidation, but all their misgivings disappear as soon as they meet Oaklynn Durst. She has stellar references, a calm disposition, and a natural way with children. Not to mention their kids simply adore her. But...