The Grey Woman by Elizabeth Gaskell

A young woman, newly married, finds herself in a remote chateau amid the forests and mountains of nineteenth-century France. The walls are thick; the doors, always locked. Her husband’s silences are longer than his explanations, and the staff seem to know more than they say. In the half-light, she begins to notice things. If there are answers, they are not offered freely. In this place, who can she trust?