London, 1929. Having set herself up as a private investigator, Maisie Dobb's first client is Christopher Davenham, who suspects that his wife is conducting an affair. First Maisie is taken aback by the object of Davenham's affection. And she is forced by her findings to revisit her own turbulent experience in the Great War. For Maisie, the boundary between her private and professional life is suddenly blurred. This is a world still reeling in the aftermath of war, a world in which many secrets lie buried. But Maisie is determined to hunt down the truth, however painful it might be ...