Homemade Sin: A Callahan Garrity Mystery, Book 3 / Mary Kay Andrews

Callahan Garrity is the owner of House Mouse, a cleaning service that tidies up after Atlanta's elite. She's also a former cop and a part-time sleuth. She and her coterie of devoted helpers can ransack a house for clues faster than it takes a fingerprint to set.

Some people might call Callahan Garrity nosy, but she prefers to think of her tendency toward snooping as a healthy interest in the truth. So when news reaches her of her cousin Patti's death during a carjacking, Callahan shakes off her House Mouse cleaning uniform to don her detective's cap. It's not that she doesn't have confidence in the Atlanta police - she used to be among their ranks - but the crime is too incongruous with Patti's suburban life to seem like a random incident.