April Kyle, the head of an upscale Boston call-girl operation, requests private investigator Spenser's help in preventing a local kingpin from seizing control of her enterprise.

Elizabeth Shaw specializes in wills and trusts at the Boston law firm of Shaw & Cartwright, and over the years she's developed a friendship with the wives of very wealthy men. However, these rich wives have a mutual secret: they've all had an affair with a man named Gary Eisenhower--and now he's blackmailing them for money. Shaw hires Spenser to make Eisenhower "cease and desist," so to speak, but when women start turning up dead, Spenser's assignment...

Parker once again proves he is a force of nature in this mystery where a hurricane hinders a kidnapping and Spenser goes on a search for the man responsible--the infamous Gray Man, who has both helped and hunted Spenser in the past.