At twelve o'clock at midnight, when the city fell into a deep sleep, a mysterious building called the "Rule Hall" quietly emerged. Lin Ye, an ordinary college student, accidentally received a strange ticket and was forced to be involved in this deadly game. Here, every rule is related to life and death, and every choice may be doomed. When cold rules collide with fiery emotions, and when the dark side of human nature is infinitely magnified, can Lin Ye lead the trapped people out of this maze with his extraordinary observation and calm judgment? And what kind of unknown secrets do the mysterious women who fight alongside him hide?