When rules become traps, reasoning is the only weapon.
In order to find his missing mentor, Lin Xu, a former police academy student, entered a sanatorium that had been abandoned for ten years, but fell into an alien space with twisted rules. The midnight radio broadcasts a strange code on time, and violators will be dragged into the darkness by the "cleaners". With the police badge left by his mentor, Lin Xu bound the [Rule Analysis and Reasoning System], only to find that behind every survival rule, there was the bloody truth about the serial murders ten years ago.
Space Rule 1: Silence is golden, but the truth needs to be shouted out.
Space Rule 2: Trust is poison, but cooperation is the only way to survive.
Space Rule 3: The mole is around you, and his motives are far beyond your imagination.
Lin Xu must use his talent of "contradictory insight" to distinguish between friends and foes among the seemingly gentle librarian, the timid female college student with excellent memory, the impulsive former detective, and the female doctor whose identity is a mystery. But the rules of space are constantly upgrading, the secrets of teammates are exposed one after another, and the goals of the mastermind behind the scenes go far beyond killing...
This is a death game that pits logic against madness, and is also a suspenseful feast that reveals humanity and redemption.
When the final rules are rewritten, who can survive in the whirlpool of lies and truth?
