The night before she is set to leave for a super-exclusive preview of a new cruise ship, she is awakened by an intruder in her apartment. The intruder gets away, and Lo is too unsettled by the whole experience to get any sleep. Arriving exhausted at the ship, she prepares herself to enjoy the plush suite and extravagant services available to the exclusive guest list. But then, in the middle of the night, she witnesses (or thinks she does) a woman thrown overboard by an unknown assailant. But when none of the passengers or crew come up missing, Lo is forced to question everything, including her own sanity.