讲述了一个数学天才Nathan（阿沙·巴特菲尔德饰演）因数学天赋而到中国参加一个奥林匹克竞赛，并与一位中国姑娘Zhang Mei(焦阳饰演）产生爱情的故事。 　　男主角Nathan是一个有见解的大男孩，但也不必要的与其母亲（莎莉·霍金斯饰演）产生了矛盾。来到中国后，纠结于学业以及爱情之中，讲述了青年人的成长与蜕变。In a world difficult to comprehend, Nathan struggles to connect with those around him - most of all his loving mother - but finds comfort in numbers. When Nathan is taken under the wing of unconventional and anarchic teacher, Mr. Humphreys, the pair forge an unusual friendship and Nathan's talents win him a place on the UK team at the International Mathematics Olympiad. From suburban England to bustling Taipei and back again, Nathan builds complex relationships as he is confronted by the irrational nature of love.