Ruoxuan lost all of her childhood memories due to an accident happened at her old home when she was a kid. Years later, the old mansion was turned into a medical school. However, whenever Ruoxuan passes by the remains of the old house -- an old well, she has bits and pieces of memories flashing...
A strange image of a human figure appeared on the wall of cinema number 404. The discovery of a female corpse in the wall marked the beginning of not only a new investigation, but also a series of horrible paranormal events.
