In the cold autopsy room, forensic doctor Qin Mo discovered a faint blue mark that was invisible to the naked eye on the wrist of the thirteenth unknown corpse. What made him even more suffocated was that there was the same mark on the inside of his wrist. At the same time, the city's first "second-level disappearance case" occurred: under surveillance, a living person disappeared out of thin air as if it had been erased, leaving only a cell phone with a countdown on the screen fixed at "108:00:00".
All clues point to a street that was burned down three years ago - Yongye Street. Qin Mo and the reporter Lu Qing who was following the matter were forced to cooperate. At the strange clock at midnight, they witnessed the street that should not have existed above the ruins reappearing like a mirage. In the cafe on the corner called "Between Eternity", a mysterious gatekeeper is waiting for their arrival.
The countdown has begun. Qin Mo must uncover the origin of the seal within the 108-hour deadline, otherwise he will become the next person to be permanently "missing".
