Seven friends throw a 1920s themed party, where it's all pretend . . . until one of them is murdered.“A can't miss for mystery fans.”-Kathleen Glasgow, New York Times bestselling author of Girl in Pieces and The Agathas“An unputdownable, bittersweet whodunit.”-Kirkus ReviewsSomeone brought a knife to the party.To celebrate the end of high school, Izzy Morales joins her ride-or-die Kassidy and five friends on a 1920s-themed getaway at the glamorous Ashwood Manor. There, Izzy and her friends party in vintage dresses and expensive diamonds-until Kassidy's boyfriend turns up dead.Murdered, investigators declare when they arrive at the scene. And every party guest is a suspect.The girlfriend, in love.The other girl, in despair.The old friend, forlorn.The new friend, distressed.The wild card, an enigma.And Izzy-the girl who brought the knife.To find the killer, everyone must undergo a grueling interrogation, all while locked in an estate where, suddenly, the greatest luxury is innocence.