In search of Li Ping, Wang Xue breaks into a psychiatric sanatorium with Zhang Yan and Dong Wen, whose identity has been exposed. A strange old man gives them a bizarre warning, and when they enter the underground core, they face laser attacks and collisions with automated transport platforms. Dong Wen is gravely injured but provides them with access, while Zhang Yan sabotages the main control System. Wang Xue rushes toward Door 07. The truth behind it remains unknown, and the terrifying killing game may have already begun!
