In order to escape the trauma of urban life, writer Qi Nuan moved into Qiyunju, a century-old house in a remote mountainous area, to seek inspiration for writing. However, on the first night she moved in, she heard strange knocking sounds from the attic, and then found a diary from 1923 in a secret compartment in the wall - belonging to a Republic of China woman named Lin Yulan. She was once the concubine of a warlord, and was imprisoned in the attic of this house, and eventually died mysteriously.
As Qi Nuan read the diary deeply, the supernatural phenomena in the house became more and more intense: the inexplicable shifting of objects, the sobbing of a woman late at night, the flash of a white figure outside the window... What was even more frightening was that when people in the town saw her, they showed frightened expressions and murmured to themselves: "She's back again."
The appearance of folklorist Zhou Mo gradually revealed the truth - Lin Yulan did not die of natural causes, but was involved in an evil immortality ritual. It is no coincidence that Qi Nuan and Lin Yulan look exactly the same. When the attic door lock rusts and falls off, the resentful spirit from a hundred years ago is about to complete its final revenge, and Qi Nuan's soul is being taken over bit by bit.
