Eight years ago, Father Colin Hampstead presided over an aborted exorcism that resulted in the gruesome death of seventeen-year-old Jewel Grant, in rural Louisiana. The deceased girl’s older sister, Kayleigh, grew immediately attached to Hampstead and sought him out, at first for grief counseling and then, for more. The once-zealous Father Hampstead soon left the priesthood, disillusioned with religion, but comforted by his love for Kayleigh. Colin and Kayleigh marry, but, on the night of their wedding, Kayleigh has a vision of her dead sister.