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´ 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. Over the course of the party, 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. As Murray´s family secrets are revealed, Kass must prove herself innocent while evading the anonymous threats that haunt her every move.