Modern British Mysteries

A young woman is dumped, injured and unconscious, in a private hospital's parking lot. She is an amnesiac with no memory prior to her discovery by hospital personnel. Detective Inspector Peter Diamond of the Bath homicide squad is unwilling to become involved. He has other, more important cases to solve: a woman has plunged to her death from the roof of a local landmark while half the young people of Bath partied below, and an elderly farmer has shot himself.

Mrs. Laetitia Rodd, aged 52, is the widow of an archdeacon who makes her living as a highly discreet private investigator. Her brother, Frederick Tyson, is a criminal barrister living in nearby Highgate with his wife and 10 children. Frederick finds the cases, and Laetitia solves them using her arch intelligence and her immaculate cover as an unsuspecting widow. When a case arises involving the son of the highly connected Sir James Calderstone, Laetitia sets off for Lincolnshire undercover as the family's new governess.