影片改编自杰米·普利马克·沙利文撰写的一篇关于一名女性在危机时刻保护家人的文章。讲述了一个母亲带着两个孩子来到父亲所在的豪宅度过周末，看似华丽的宅子却暗藏着许多秘密。

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 Bri