At a fashionable dinner party in Hong Kong a naval officer is coaxed into revealing details of a dream in which eight persons take off from Bangkok in a Dakota bound for Tokyo and crash in the Japanes...

玛格丽特（奥利维娅·科尔曼 Olivia Colman 饰）从小在父亲经营的书店里玩耍长大，博览群书的她对人物传记情有独钟，成年后，她甚至开始尝试着自己撰写古人传记。某日，玛格丽特收到了作家温特（瓦妮莎·雷德格瑞夫 Vanessa Redgrave 饰）的来信，信中，温特表示希望玛格丽特能够替她立书作传。　　玛格丽特的身世和她本人一样充满了谜团，坊间流传的有关她的传闻几乎都不属实。好奇心的驱使之下...