Nora (Elliott) plays a young wife and mother who's tormented by blinding headaches and dizziness. Along with her husband and young son, she decides to return to her childhood home in Ireland to visit her ailing grandmother. But her symptoms worsen the closer she gets to her ancestral home, and Elliott discovers that her creepy uncle (Walken) has retrieved the body of a witch who died hundreds of years before. Only she's not quite dead.