Until Death — James L. Thane

It's summer in the Valley of the Sun; the temperature's rising and so is the body count. One of the city's most exclusive escorts has misplaced her little black book and someone's turned it into a hit list. Now Phoenix homicide detective Sean Richardson must stop an elusive killer who's bent on administering a very personal form of justice. And until he can, some of the city's most affluent citizens will pay the ultimate price for their sexual indiscretions...