Arthur accidentally drops his gun while performing at a children’s hospital and is subsequently dismissed. While riding home on the subway and still wearing his clown make-up, he is mocked and assaulted by three drunk businessmen from Wayne Investments. He fatally shoots two of them in self-defense and murders the third as he attempts to flee. Their employer, billionaire mayoral candidate Thomas Wayne, condemns the killings, but supporters begin sporting clown masks in Arthur’s image. Budget cuts shut down the social services program, leaving Arthur without his medication. Sophie attends Arthur’s stand-up routine, which fails due to his disorder and his jokes falling flat. Arthur intercepts a letter from Penny to Thomas indicating that he is Thomas’s illegitimate son, and berates his mother for hiding the truth of his parentage.