In 2028, fissures in the rules tear reality apart, randomly dragging people into eerie prisons.
Rule One: Do not answer the knock at the door, even if it's someone you love most.
Rule Two: The dorm supervisor is safe, but never look at her face.
Rule Three: Not all of the rules above are true.
A year ago, Lin Mo's older sister was swallowed by a fissure, leaving behind only a final message: “Go to the old dormitory and keep watch for seven nights.”
To find his sister, he enters this hellish world of rules of his own accord. After awakening his “Eye of Rule Paradoxes,” he sees through the deadly traps behind every rule, fighting his way from an old staff dormitory to a school building at midnight, from the last subway train to Anning Hospital.
When the Rule-Keepers' blades come down, and the fissures swallow the entire city, he finally learns the truth: his sister isn't dead. She willingly became the vessel for the source of the rules.
This time, he will break every rule and snatch his sister back from hell!
