At 12:03 midnight, Lin Xia, the front desk clerk at the Hyatt Hotel, met a guest who shouldn't exist.
He held a key card for room 404 - but there was no such room in this hotel. When the man disappeared in the elevator, all that was left behind were a series of strange wet footprints and the blurry reflection behind Lin Xia on the surveillance screen. In order to investigate the truth, Lin Xia broke into the deliberately hidden Room 404, but she didn't know that she was stepping into a death mystery that had been sealed for three years.
Three years ago, architect Zhou Mo ended his life in this room with a paper knife in his suitcase; three years ago, Lin Xia's sister mysteriously fell to death in the same room; three years ago, security guard Chen's leg was permanently disabled outside the door of Room 404. When Lin Xia discovered that the cross necklace left by her sister had a mysterious resonance with Zhou Mo's design drawings, the scar on the neck of hotel manager Su Wen began to ooze blood...
This night, room 404 opened the door again.
The damp key card is melting, the reflection in the surveillance camera is approaching, and the secrets in the suitcase are awakening. What Lin Xia didn't know was that when the elevator stopped on the fourth floor, a living person could never see the real floor indication.
This is a dialogue between the living and the dead, and it is also a thrilling story about sin, redemption and obsession. When the door to 404 finally closes, guess who will be left inside?
(Suspense and supernatural + psychological thriller, integrating the space intrigue of "The Shining" and the curse setting of "The Ring" to create a new experience of Chinese urban ghost stories)