Nicknamed "King of Hell", night taxi driver Qiao Zuozhi (played by Yang Chaokai) fully utilized the advantages of his profession: he frequently encountered ghosts, and finally lost all his wealth. It was not until he met his middle school classmate Gao Gu Ni (played by Huang Jiandong) that he completely overcame his fear of ghosts and monsters. Gu Ni and Zuozhi were best friends in middle school. After many years, Gu Ni had unexpectedly transformed into a scientist who specialized in the study of energy gathering of spiritual weapons. He was determined to develop spiritual power generation to save the earth's energy crisis and make money from it. Later, the two of them set up the "Demon Taxi Agency" together, hoping to save the world.