Li Mubai, an ordinary urban youth living in poverty, accidentally picks up the lost secret technique of shape-changing, which allows him to change other people's faces at will. In order to solve the difficulties in life, he changed nine completely different faces to make a living and avoid trouble. He pretended to be a worker part-time to make money, a businessman to discuss cooperation, and he also used other people's appearances to avoid trouble. But frequent face-changing gradually breeds hidden dangers. Each time he changes his face, he is mentally drained, and each face carries the past entanglements of the original owner. The use of false identities leads to tracing, misunderstandings and disputes by creditors, and the line between true and false identities is completely blurred. When he wanted to change back to his original appearance, the secret technique backfired and his face began to become erratic. Li Mubai suddenly realizes that blindly relying on disguise to escape reality will only lose himself. Finally, he takes the initiative to resolve all the troubles caused by the nine faces, abandons the secret technique, and accepts his true and ordinary self.
