Five years ago, Amanda Pierce was excitedly preparing to marry her college sweetheart. Then, with their guests and families all gathered together, she disappeared. In present-day New York City, Laurie Moran realizes a missing bride is the perfect cold case for her investigative television series, “Under Suspicion.” She and her team set out to recreate the night of the disappearance at the Florida resort with Amanda’s friends and family in attendance. Laurie and “Under Suspicion” host Alex Buckley quickly realize everyone has a theory about why Amanda vanished into thin air.