Victoria Thompson-Murder on Fifth Avenue

An upper-class midwife and an Irish Catholic police detective continue their unlikely alliance in a seventh murder investigation.

Sarah Brandt defied her wealthy family to marry a doctor and become a midwife. Now a self-supporting widow, she has good relations with her parents but is still very surprised when her father, Felix Decker, calls upon her friend Detective Sgt. Frank Malloy to solve the murder of a fellow Knickerbocker Club member. When Chilton Devries was found dead at the club, his death first seemed to be by natural causes. But a small stab wound in his back proves that he was murdered. Malloy is not welcomed at the Devries mansion, but between his talks with the servants and the calls Sarah and her mother pay on the not overly sad widow, they manage to dig up some promising leads. Devries had a mistress; he spent the night before his death with her; his son and daughter-in-law hated him; and he had a number of business enemies