Lancashire, 1620. Young Sarah Haworth and her family live as outcasts. They are 'cunning folk', feared by the local villagers by day, but called upon under cover of darkness for healing balms and spells. Against the odds, love blossoms when Sarah meets Daniel, the local farmer's son. But when a new magistrate arrives to investigate a spate of strange deaths, his gaze inevitably turns to Sarah and her family. In a world where cunning women are forced into darkness by powerful men, can Sarah reckon with her fate to protect all she holds dear?