Synopsis: It was supposed to be a normal, everyday gang bang - one aggressive woman, a bunch of slightly, pathetic and depressed men. But one of the participants was not like the others - The Happy Face Killer spearheads the Mr. Serial Killer series, Steven Cerritos' examination of the many facets of the titular psychopath. Framed by a madcap riff on Roger Hargreaves' 'Mr. Men,' each episode focuses on a particular personality trait of the killer, taking a look at the darker side of human nature through an absurdist lens.