When Edith Todd is struck down in a hit-and-run incident on a stormy November evening in 1999, police assume her death is an accident. But her neighbour Beth Langille knows better. As captain of the local Block Watch, Edith was straightlaced and nosy, making many enemies while she attempted to thwart local criminals. Now, Beth must start her own investigation after police write her off as just another busybody.

Beth's suspicions grow when she learns about an old locket found under Edith's garage just before she died-a locket that belonged to a woman who went missing in the sixties. Could Edith's death have something to do with the missing Emma Mahoney? Or was she perhaps targeted by a former-neighbour's con-artist nephew intent on stealing his uncle's fortune?

Though her work as an infection control nurse requires sleuth-like abilities, Beth recognizes she needs help and enlists the services of a former policeman, Cameron Ross. But with his mind fixed on solving Emma Mahoney's cold case, will Beth be able to find justice for Edith?