VisitinginEngland,famedAmericansurgeonDoctorJohnMarloweisdecoyedtoamiddleEuropeancountry,anddiscoverstheoperationheistoperformisontheVosniandictator.Whenthelatterdies,heisreplacedbyalook-alike,butMarloweistheobjectofashoot-to-kill,viciouspursuitbythesecretpoliceofVosniasinceitisvitaltoVosniathatthedictator’sdeathdoesnotbecomeknown.Fleeing,heseekshelpfromanEnglish-speakingactress,LisaRobinson,andthetwoareharriedacrossthecountrysidebeforebeingcaptured.《国家机密》是西德尼·吉里亚特于1950 年在英国 导演，由Douglas,Fairbanks,Jr.,Jack,Hawkins,小道格拉斯·范朋克,Douglas,Fairbanks,Jr.等出演,剧中使用英语对白,是一部剧情片电影。