The colder it gets . . . the hotter it gets. Three years ago SFPD Homicide Investigator Kate Gillespie was in pursuit of a suspect who murdered a hooker in a sleazy motel, and she nearly lost her own life in the process. The shooter escaped into the San Francisco shadows and the trail went colder than the grave. Now Kate's appearance on a Bay Area "crime stoppers" TV show produces new leads that carry her back into the sordid world of drugs and prostitution...