The first week after moving into Room 401 in the old city, Zhou Ye discovered something was wrong.
There is a missing person notice posted on the window on the fifth floor opposite. The missing girl in the photo is named Chen Siyu. She has a bright smile and a black aura behind her right shoulder that only Taoist priests can see. Zhou Ye is a Taoist priest who has become a monk on the way. He has studied with Chen Shouyi in a dilapidated temple on the outskirts of the city for nine years. He has done many things such as identifying yin energy, drawing talismans, and sending lost ghosts on their way. But this photo of Chen Siyu is different - the shape of the black air is like a hand on her shoulder.
What's even more wrong is upstairs.
Every day at two o'clock in the morning, there will be three knocks on the ceiling of 401 on time. Thump, thump, thump, evenly spaced and very light, like someone tapping their knuckles on the floor. …
Concept: Thriller, suspense, urban ghost stories