Who killed Sally Kahn? There hasn't been a murder in 15 years in tranquil, affluent Hardington, Massachusetts. But someone pushed a moderately wealthy 65-year-old widow down her basement stairs, and then tried to make it look like an accident. Two people will work - together and independently - to find the murderer. John Flynn, a retired Boston Police Department detective with an outstanding record, will lead the official investigation. He will solve the murder despite the best efforts of Hardington's police chief, who cannot abide the idea of a murderer on the loose in his bucolic town and so who arrests the first likely suspect. Liz Phillips has a life centered on her garden and her garden club. Sally Kahn was one of her best friends and it is Liz who found the body. But Liz is a lonely woman, her daughter married and living far away, and her husband constantly on the road. Liz will help solve the murder by using intuition, asking questions, and knowing her town. Their quest to find Sally Kahn's killer will lead Liz Phillips and Detective John Flynn into an unfamiliar world of email inboxes and wireless Internet routers, hazardous waste disposal and the economics of tearing down houses to build 'McMansions'. Their search will also take them through an emotional landscape of adultery and the simmering resentment between 'townies' and the new-money affluent.