It was supposed to be a night of celebration, ringing in New Year's 1998 with good friends in an ideal location. Ben Smart and Olivia Hope were celebrating in Marlborough Sounds, New Zealand. But when the bunk on their rental yacht was taken by other party-goers, they accepted an offer by a charming stranger to sleep aboard his boat. They climbed aboard that stranger’s boat and were never seen again. Police and judges believe they arrested the man responsible for Ben and Olivia’s disappearance, and possible murder. However, over 20 years later, the mystery around their disappearance remains.