Someone Always Knows — Marcia Muller

Finally settled into their new home after losing their house in a fire, and fully established in their new shared offices, private investigator Sharon McCone and her business partner husband Hy are starting to feel comfortable. That calm is shattered when Hy's former colleague Gage Renshaw--a shady troublemaker who they had presumed dead--reappears, and it's unclear what he wants from his prosperous former associate.

Meanwhile, Sharon has a new client with a desire to rid a derelict house he's just bought in the city's notorious Western Addition neighborhood from intruders, drug users, and thugs. However, the abandoned house holds its share of secrets, and soon Sharon is contending with more than a simple eyesore as she searches for the individual who is obsessed with destroying her life....