Anna's disturbing adventures begin when a house she sketched on paper eerily comes to life in a recurring dream. Bedridden with a fever, the imaginative and lonely child becomes obsessed with her drawing when she discovers that she can manipulate the course of her dream by adding to her picture. As Anna deliriously plunges deeper and deeper into her fantasy world, she becomes convinced that her drawings have begun to control and perhaps destroy her life. Her fever escalates, and the thin line between real and imagined blurs until Anna becomes trapped in a terror-filled nightmare, fearful that she won't escape alive.