The police knocked on the door frantically, claiming to be searching for the murderer, but the warnings and disappearing signals in the WeChat group showed that they were a killing gang in disguise. Zheng Chuan is trapped in the apartment, and time seems to have stopped. He must use his wisdom to survive among the floors. He eventually discovered that this was actually a "hunting game" broadcast live to darknet viewers, and the target was his organs. At the critical moment, police snipers arrived. Just when he thought the nightmare was over and he was starting a new life, the familiar scarlet text appeared in his mind again, and the cold countdown started again for the next "live broadcast". Can he still escape by chance?