In the eerie and foreboding landscape of rural Wales, a musician and her husband unwittingly unleash a malevolent force when they disturb an ancient fairy ring in their isolated cabin. The couple's life is forever altered as a mysterious child with sinister intentions appears at their doorstep, shrouding their existence in an unsettling aura of dread. As the boundaries between reality and the supernatural blur, Dev Patel stars alongside Rosy McEwen and Jade Croot in this chilling tale of folk horror that delves into the darker corners of human nature.