In 2047, Lin Shen, a hypnotist who works with the dying, sees off his terminally ill sister, Lin Nianzhi, believing she passed away peacefully. Ten years later, several patients tell him the same thing shortly before they die: "Your sister asked me to tell you: the dream isn't over."
He discovers that the 217 people he saw off never truly died. Their consciousnesses are trapped in an inverted city of dreams, serving as living batteries that supply fear-generated energy to the super AI Nuwa.
His sister has been waiting for him there for ten years.
