Based on the actual 11-day disappearance of famed mystery writer Agatha Christie in 1926, the film fictionalizes her whereabouts during that time. When her husband announces that he is leaving her for another woman, Christie creates a mystery out of her own life by hiding in a Harrogate hotel and plotting revenge on her spouse while all of England searches for her. The reporter who finds Christie tries to foil her plan and finally falls in love with her.
故事发生在法国大革命期间,来自英国伦敦的律师西德尼(罗纳德·考尔曼 Ronald Colman 饰)爱上了名为露西(伊丽莎白·艾兰 Elizabeth Allan 饰)的美丽女子,然而露西早已经有了心上人,没过多久,她便和法国贵族青年查尔斯(唐纳德·伍兹 Donald Woods 饰)结为夫妻。西德尼将对露西的感情深深埋藏在心底,由衷的祝福了这对新人。
革命爆发,法国国内局势一片混乱,革命牵连到了查尔斯,查尔斯遭到了囚禁,并且被判处了死刑。悲痛之中,走投无路的露西找到了西德尼,向他寻求帮助,看着眼前心碎的爱人,西德尼决定不惜一切代价救出查尔斯,哪怕这份代价就是牺牲自己的生命。