Through no fault of his own, Brennan is plunged into the marital machinations of the Westerlys, a retired Indiana couple enjoying a second honeymoon. At least Amy Westerly is enjoying it: elegantly coiffed and attired, she's frolicking through Paris in the company of a charming French gigolo. 

Brennan helps a distraught young woman through a trying situation. Francine Shelby, upset by the apparent suicide of her father, swears that her stepmother is responsible - and will pay for it.

Accused of receiving stolen top-secret documents, Brennan turns fugitive to put the finger on the real culprit: a top agent of the British Foreign Service.

Brennan investigates when a distinguished American jurist is accused of having fathered an illegitimate child during World War II.