该片讲述一对新婚夫妇Trevor Forrest（Chris Carmack扮演）和Lindsey Forrest（Summer Glau扮演）正在享受蜜月之旅，然而突如其来的变故让这对看起来完美无缺的新人变得不那么「完美」。Forrest夫妇在一艘豪华游轮上参加完聚会之后，Lindsey突然发现Trevor不见了－－他可能已经落海并死亡。船上的人立即展开调查，一名正在船上度假的FBI女探员（Zoe McLellan扮演）也加入其中。现在的问题是：Trevor的死究竟是意外，还是有人蓄意谋杀？
Handsome silver spoon Texan Trevor Forrest can't always control his tendencies to flirt and gamble, even on honeymoon cruise to Tahiti with Lindsey Ross Forrest, which may compromise their business ambitions. The ship captain asks FBI agent Gwen Merced, on cruise, to investigate discretely when Trevor goes missing, probably fallen or pushed overboard as blood traces are found. It's unclear whether the Hungarian business trio Luka, Max and Ben are innocent flirtatious gamblers like Trevor or criminals, but others have hidden agendas too.