A buried past. A new-age cult. A floating prison with no way off. Seven years ago, Olivia woke up in the trunk of a stranger’s car—and barely escaped with her life. She’s been looking over her shoulder ever since. Now, Olivia is a true-crime podcaster on a mission to help other women avoid her fate. But years spent covering violence and crime have left her burned out. So when Olivia’s estranged sister Quinn invites her to reconnect on an exclusive cruise, she jumps at the chance for a break…only this trip won’t be the relaxing vacation she’s hoping for. The ship is elegant, the meals are divine, and the people are friendly—maybe too friendly. But Quinn isn’t the sister Olivia remembers. And strange things are starting to happen that echo Olivia's past in unsettling ways. When someone on the ship goes missing, Olivia realizes she’s playing a dangerous game of cat and mouse. Only this time, she might not survive.