Nora, bereft after the death of her husband, finds herself alone and caring for her grandson Micheal, who can neither speak nor walk. A handmaid, Mary, arrives to help Nora just as rumours begin to spread that Michael is a changeling child who is bringing bad luck to the valley. Determined to banish evil, Nora and Mary enlist the help of Nance, an elderly wanderer who understands the magic of the old ways.