Childhood friends Tommy and Tuppence meet in London after having served in World War I. Recently "demobed", short of money, and with no job prospects, they decide to become adventurers for hire. Soon, they are employed by the British Government
某飛機失事後109名乘客僅數名幸存。心理醫生克萊爾(安妮•海瑟薇Anne Hathaway 飾)被導師派去對幸存者進行心理治療,卻發現自己漸漸愛上幸存者之一,前證券公司副總裁艾瑞克(帕特裡克•威爾森 Patrick Wilson 飾)。與此同時,克萊爾發現診所外經常有人監視,自己被跟梢,病人神秘失蹤,甚至航空公司職員也來威脅她不要多管閑事,這令克萊爾懷疑航空公司為掩蓋機械故障的事實,故意用操作失誤來掩人耳目避免調查,進而對察覺真相的幸存乘客施以毒手。隨著克萊爾與艾瑞克感情的深入,病人竟變得越來越少,克萊爾