In 1825, in a remote valley in Ireland, three women are brought together by troubling events.

Nora cares for her orphaned four-year-old grandson, who can neither walk nor speak. She hires a servant girl, Mary, to help her. Soon, Mary hears rumours in the valley about the dark powers of this strange little boy.

In desperation, Nora and Mary turn to Nance Roche, a woman who locals say has the knowledge. That she consorts with the Good People, and only Nance can return those whom they have taken ...