A lavish engagement party turns deadly and the bride-to-be is the primary suspect in this heart-stopping thriller exploring the dark underbelly of the ueberwealthy and just how far people will go for revenge, in the vein of Sarah Pinborough and Ruth Ware.

Kass Baptiste is newly engaged to her fiance Murray Sedgemont after a whirlwind romance. Before they even get to share the news, an invitation arrives via messenger - to an engagement party hosted by Murray's parents. When Kass and Murray arrive at the Sedgemont Estate, she is astonished to learn that Murray's family is one of the most powerful families in North Carolina. As Kass's future mother-in-law, Beatrice, whips herself into a frenzy over the perfect party for the state's elite, Kass begins to receive anonymous threatening social media messages.

On the night of the event, as champagne is popped and the celebrations begin, a body is found in the lavish home. All eyes are on Kass, the interloper amongst the rich and powerful guests. Kass's dark past unexpectedly becomes intertwined with the murder, and in order to prove her innocence, she must finally come to terms with her secrets while evading the anonymous threats that haunt her every move.