In the city, a real-life thriller game with "taboos" written down as instructions was quietly launched: the zero floor of the elevator at 2:30 in the morning, room 404 where you are not allowed to say "please come in" for seven nights, the rooftop wind chime where you must report your real name three breaths before the wind stops... Bai Qiehei's rule researcher Jiang Li, in order to trace the disappearance of his sister seven years ago, was forced to team up with investor representative Lu Zhan, the CEO of the technology that suppresses coldness, to break through. Every time you follow a rule, you have to pay a price; every time you break an exception, the iron law backfires deeper. While catching monsters that "borrow time," "sign for receipt," and "archive", the two uncovered the truth about the "rule generator" and the "creator" behind the scenes: Order can be created, or it can swallow people up. Reason and gentleness are the keys to each other in crisis, and trust and control play each other step by step. When the whole city falls into the ultimate copy of "Reverse Time Telling", they must make the only choice - whether to be the only exception for each other.
