Frances Barnett and Abby Bernacki are two haunted young mothers living in the same house in two different centuries. 1885: Frances Barnett is in the Northampton Lunatic Hospital, telling her story to a visitor. She has come to distrust her own memories, and believes that her pregnancy, birth, and early days of motherhood may have impaired her sanity. Present day: Abby has been adjusting to motherhood smoothly--until recently, when odd sensations and dreams have begun to unsettle her while home alone with her baby. When she starts to question the house's history, she is given the diary of Frances Barnett, who lived in the house 125 years earlier. Abby finds the diary disturbing, and researches the Barnett family's history. The more Abby learns, the more she wonders about a negative--possibly supernatural--influence in her house.