An evil spirit that can escape the water only by possessing a living person. The evil spirit of a child who died unjustly while waiting for his mother alone. When his younger sister, Soo-ah, was attacked, he and his family suffered for a long time. His mother, Geum-jeong, a spiritual shaman, was in charge of the energy of the five elements. She tries to use her coexistence and antipathy to escape the water ghost, but in the end, Soo-ah disappears into the cold, deep water, and her remaining family life falls apart. Then one day, Ga-yeong goes looking for her mother who suddenly disappears. He heads to the reservoir that swallowed Soo-ah, where he finds a mysterious body. Ga-yeong is chased by a terrible evil spirit that takes the form of her dead brother…
