After being plotted by the escort, Li Biansheng, who entered the prison camp, began to plan his own escape.
At the same time, the surrounding environment is getting worse and worse, and the outer city has completely turned into a supernatural place. And when she was forced to carry out the dispatch mission, the horrors hidden in the central city gradually surfaced.
Ghosts of unknown origin, hard-to-reach rules of survival, life-and-death struggles to maintain humanity... And that whisper of a call from hell in a dream
Sister...
Concept: Human perseverance struggling on the line of life and death