After working overtime until the early hours, Lin Ye is forcibly pulled into a world of Rule-Bound Horror.
An office tower late at night, a rideshare car at midnight, a rental in an urban village, a 24-hour convenience store, a night-shift hospital...
Each is part of everyday life familiar to every adult, yet each conceals deadly rules.
Break a rule, and you die on the spot.
Everyone else frantically memorizes the rules, guesses at the traps, and trembles in fear.
Only Lin Ye can see the hidden red warnings that no one else can.
