"The Lost Floor"
The lives of Lin Mo and Xia Wan were completely disrupted by a strange old building. Reporter Lin Mo investigates the "Missing Case on the Thirteenth Floor of Jinhua Building." Three people have disappeared mysteriously while searching for this floor in the past ten years; while Xia Wan, the building administrator, hears footsteps coming from the thirteenth floor every early morning, but never sees anyone.
The two teamed up to investigate and found that the thirteenth floor was indeed marked on the building drawings, but there were no corresponding floor entrances for the elevator buttons and stairways. What's even weirder is that people who have been exposed to clues on the thirteenth floor will have the same nightmare repeatedly: in a dark corridor, an iron door slowly opens, and a familiar call comes from inside.
When Lin Mo walked into the iron door in his dream, Xia Wan also discovered that his life experience was closely connected with the disappearance case. They must uncover the supernatural secret that spanned ten years before they were "swallowed" by the thirteenth floor.
