Emperor Xizong of the Tang Dynasty was seriously ill and unable to govern. In order to continue to be in power, the eunuch Tian Lingzi found Li Keji, an actor who looked exactly like him from the opera house, and imprisoned him in the palace as a puppet. Li Keji's only task is to "play" a good emperor. At first he was trembling with fear, but later he discovered that this empty identity actually had room for maneuver. He began to use this false power to do some real things - for example, saving a loyal minister who was about to be executed.