While gentleman and amateur detective Charles Lenox is celebrating his engagement to his best friend and neighbor Lady Jane Grey, two journalists are murdered simultaneously across London.

Lenox starts to involve himself in this strange case despite hostility from Scotland Yard, but soon must leave it behind to travel to Stirrington, in northern England, where he is running for a seat in Parliament.

Once at Stirrington, he has to overcome local suspicion of an outsider, and faces a shock when Lady Jane sends him a letter casting doubt on their upcoming marriage.

Marilyn Stasio of the New York Times called The Fleet Street Murders "a beguiling Victorian mystery [with] an amiable gentleman sleuth cut from the same fine English broadcloth as Dorothy L. Sayers’s Lord Peter Wimsey.

"[4] The Richmond Times-Dispatch praised the book, saying that "this third entry in Finch’s series shows the author at his confident best, with a well-conceived story [and] an honorable and amiable hero.