A burnt-out thriller writer desperate to regain his creative spark becomes intrigued by a decade-old unsolved murder at a glamorous Alpine hotel in this meticulously crafted novel - a matryoshka doll of a mystery built with the precision of a Swiss watch - from the internationally bestselling author of The Truth About the Harry Quebert Affair. "Dicker salutes Agatha Christie even as he drops the reader through one trapdoor into another, so that by the end, we doubt we've ever read another novel quite like it. (We haven't.) Fans of Ruth Ware and Lucy Foley will hug this book in between chapters;the many readers who love Anthony Horowitz's mysteries will celebrate. And me? I'll be reading it again." - A. J. Finn, #1 New York Times bestselling author of The Woman in the Window