On a cold November night in 1817, a seven-year-old girl named Theodosia Whitefield finds a door leading to another world. She feels a pull towards a dark, celestial being who beckons her, and senses his presence growing each day. In an old rocking chair by her bed, a seeming friend appears and helps her navigate through this new world.

Little by little, Theo’s innocence changes as the dark creature edges closer to her reality. The little girl begins to grow into something sinister and evil. Shedding her youth and innocence, her demon friend paves the way for Theodosia to meet the entity named Tetromet, The two meet and the horror and madness blossom in Theo, leading to unprecedented depths of terror.

The charming countryside of North Carolina makes the backdrop for the insanity and evil emanating from this child. She wreaks havoc on her family and friends as her power grows. It all comes to an insidious, nightmarish end, with questions of faith, sanity and above all, God and evil.