While Other People Sleep (Sharon McCone Series #18)

It starts when Sharon McCone's acquaintance tells her that someone was pretending to be the private eye at a party. Sharon investigates further and discovers that the imposter has no qualms about mixing business with sex. Even more alarming, the faux McCone is cancelling Sharon's credit cards, invading her home, and making frightening calls to family members. But when Sharon is almost arrested for a crime committed by the imposter, the determined P.I. pulls out all the stops in her search for a criminal hitting far too close to home.