Emma, a college student with a crippling fear of clowns, must come face to face with her worst fear when an evil spirit in the body of a clown is summoned terrorizing the town she calls home.

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.