When the earth was shrouded in a strange "memory fog", humans gradually lost their memory and became "blanks", the walking dead. Librarian Lin Feng accidentally became one of the few immune people. However, this "luck" pushed him into a deeper abyss.
The illusion of the "13th floor" flashes repeatedly in his mind, the remains of the "Prometheus Project" in the abandoned research institute, the mysterious girl Xiaoya's indifference, the former policeman Zhao Wei's eager gaze, and a woman who claims to be his mother, but whose identity is a mystery, Alice...
Lin Feng was forced to embark on a desperate journey to find the truth. Not only does he have to fight against the irrational "Blank Man", but he also has to deal with various forces to uncover the origin of the "Memory Fog", the legend of the "Memory Maze" and the shocking secret of himself as a "D-7 Experimental Subject".
As clues point to the Tower of Babel in the center of the city, the mystery of the 13th floor is gradually unveiled. Is it the last refuge of mankind, or is it a "memory melting pot" for careerists to screen and control mankind? When trust becomes the most luxurious thing, when family affection and betrayal intertwine, Lin Feng discovers that he is not only a survivor, but also the "memory anchor" that determines the fate of the world.
In this confusing intertwining of memory and reality, he must struggle to survive among lies and blood, awaken the dust-laden memories, and prevent the "Hive" organization from launching the final "Formatting" plan. His choice will determine salvation or destruction.