After a fire claims the life of her mother and her eyesight, young Ga-mi and her brother, Gil-son — who is unaware of their mother's death — eventually find a home with Buddhist monks in their mountainside temple.

When a demonic uprising threatens to end the world as they know it, a monk and an excommunicated priest join forces to protect a powerful young boy and the next generation of magic. As dark forces close in, the unlikely trio must confront their inner demons.