某飞机失事后109名乘客仅数名幸存。心理医生克莱尔（安妮•海瑟薇Anne Hathaway 饰）被导师派去对幸存者进行心理治疗，却发现自己渐渐爱上幸存者之一，前证券公司副总裁艾瑞克（帕特里克•威尔森 Patrick Wilson 饰）。与此同时，克莱尔发现诊所外经常有人监视，自己被跟梢，病人神秘失踪，甚至航空公司职员也来威胁她不要多管闲事，这令克莱尔怀疑航空公司为掩盖机械故障的事实，故意用操作失误来掩人耳目避免调查，进而对察觉真相的幸存乘客施以毒手。随着克莱尔与艾瑞克感情的深入，病人竟变得越来越少，克莱尔与姐姐一家也失去联络，甚至就连她的自身安全也面临威胁……
Plot Summary:After a plane crash, a young therapist, Claire, is assigned by her mentor to counsel the flight's five survivors. When they share their recollections of the incident -- which some say include an explosion that the airline claims never happened -- Claire is intrigued by Eric, the most secretive of the passengers. Just as Claire's professional relationship with Eric -- despite her better judgment -- blossoms into a romance, the survivors begin to disappear mysteriously, one by one. Claire suspects that Eric may hold all the answers and becomes determined to uncover the truth, no matter the consequences.
