In Gotham City, mentally troubled comedian Arthur Fleck is disregarded and mistreated by society. He then embarks on a downward spiral of revolution and bloody crime. This path brings him face-to-face with his alter-ego: the Joker.

Marcus, an audio-obsessed high school senior, learns he must undergo brain surgery that will render him deaf, and decides to seize control of his fate by recording the Ultimate Playlist of Noise.