At midnight, a curtain of rules envelopes the world. Lin Mo, a former analyst whose weapon is absolute calmness, is trapped in his first game venue - his apartment building. When the evil spirit in the mirror smiled ferociously and guessed its authenticity, when the entire building evaporated in an instant, only his female neighbor Su Wan, who held a hunting knife and looked like a wolf, survived with him. "No noise is allowed" in the corridor, the TV announces "Hide and seek begins", and the hunter dragging a giant ax has entered.
The rules are life and death, random and deadly. Lin Mo understood the loopholes in logic, and Su Wan executed it with beastly intuition and bravery. They have no virginity or fantasies, they only believe in each other: he is the cold brain running, and she is the sharp edge that cuts through the desperate situation. Starting from this building of despair, they will survive and evolve in the ruins of hell cut by rules, facing the abyss of human nature and strangely shaped rule creations, just to uncover the ultimate truth of this strange arrival.
