The story takes place in Hong Kong before 1996. The heroine Shirley was held hostage by robbers at her wedding and witnessed her husband's death at the hands of the robbers. Unable to get out of the haze, she now works in an archery hall. On the night of the typhoon, she was accidentally stranded in the building and witnessed the same gang of robbers killing people in the building. She also accidentally exposed her whereabouts. In the panic-stricken escape, she accidentally met Nan Ge, a blind old man who was also stranded. The two resisted the ruthless pursuit of the robbers while trying to escape from this nightmarish building. However, the vicious robbers wanted to kill people to silence them. Shirley and Nan Ge were struggling to find a way to survive in the building where the signal was interrupted and all exits were blocked...