Hercules a poor individual earns his living as a walking street ad carrying a gigantic advertising sign on his shoulders His biggest concern is his daughter Leonor who helps at home by working as a seamstress Afflicted by the economic situation Hercules gets a job as a casino watchman There he must face a trio of mobsters and a kleptomaniac baroness who tries to seduce him with her vampire airs and whom Hercules ends up falling in love with