"Mrs. Laetitia Rodd, aged fifty-two, is the widow of an archdeacon. Living in Hampstead with her confidante and landlady, Mrs. Bentley, who once let rooms to John Keats, Laetitia makes her living as a highly discreet private investigator. Her brother, Frederick Tyson, is a criminal barrister living in the neighboring village of Highgate with his wife and ten children. Frederick finds the cases, and Laetitia solves them using her arch intelligence,...