Rebecca Coriam was a 24-year-old woman from Chester, England, who began working for Disney Cruise Lines in June 2010. After nearly a year of successful trips with Disney, Coriam disappeared from the Disney Wonder on Tuesday, March 22, 2011.

After a seemingly intense phone conversation caught on the ship's security cameras, Coriam spoke briefly to another employee before walking out of her room and vanishing. Disney contacted Coriam's parents late that same night, telling them their daughter was missing and inviting them to meet the ship at its final stop.

The Coriams received a pair of flip-flops, which the case's one and only investigator alleged came from their daughter. According to the officer, this proved the young woman went overboard due to a rogue wave on the crew pool deck. Ultimately, Coriam's parents left the ship with practically no leads, prompting a years-long crusade to find Coriam and determine what actually became of her.