Obstetrician Dr. Sophie Savard returns home to Manhattan in spring of 1884 to rebuild her life after the death of her husband. With the help of Anna Savard, her dearest friend, cousin, and fellow physician she plans to continue her work aiding the disadvantaged women society would rather forget. In this follow-up to The Gilded Hour, Anna's husband, Detective-Sergeant Jack Mezzanotte calls on them both to consult on two new cases: the wife of a prominent banker has disappeared into thin air, and the corpse of a young woman is found with baffling wounds that suggest a killer is on the loose. Unable to ignore the plight of New York's less fortunate, these intrepid cousins draw on all their resources to protect their patients.