Harper Finley has spent eight months planning the perfect coastal Maine wedding—until she arrives for her final venue walkthrough and discovers a second bride booked for the same day, one hour after her own ceremony. The name on the key card makes her blood run cold: S. Monroe, her childhood best friend who's supposed to be her maid of honor. When her fiancé Ethan shows up unexpectedly, Harper demands answers, but nothing prepares her for the truth about how her relationship really began—or how long the people closest to her have been lying. With forty-eight hours until both ceremonies are scheduled to take place, Harper must decide whether to expose the betrayal or walk away from everything she thought she knew about love and loyalty. Sometimes the cruelest deceptions come wrapped in white lace and promises.