Named a New York Times Best Thriller of the Year and Best Book to Gift! "An unsettling and atmospheric thriller that’s almost impossible to put down . . . Will keep you guessing right up until its satisfying but unexpected conclusion." — Buzzfeed"Riveting." — The New York Times Book ReviewThe acclaimed author of The Nanny and What She Knew—hailed by stalwarts including Ruth Ware, Liane Moriarty, Tess Gerritsen, and Shari Lapena—returns with another serpentine thriller that cl