In the summer of 1989, a group of bullied kids band together to destroy a shape-shifting monster, which disguises itself as a clown and preys on the children of Derry, their small Maine town.

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.

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.

Twenty-seven years after their first encounter with the terrifying Pennywise, the Losers Club have grown up and moved away, until a devastating phone call brings them back.