Shock and grief play tricks on the mind. Cissy Cahill has been telling herself that a lot lately. Even if Cissy wasn't particularly close to her grandmother, Eugenia Cahill's sudden death was bound to take a toll. That would explain the footsteps Cissy hears when there's no one around, the scent of another woman's perfume, the unnerving shadows outside her son's bedroom window. She doesn't want to...