When Marlene Cowley hires Spenser to see if her husband, Trent, is cheating on her, he encounters more than he bargained for. Not only does he find a two-timing husband, but a second investigator as well, hired by the husband to look after his wife. As a result of their joint efforts, Spenser soon finds himself investigating both individual depravity and corporate corruption. '|Nobody does it better than Parker.'| - The Sunday Times