During the 1980s, a failed stand-up comedian is driven insane and turns to a life of crime and chaos in Gotham City while becoming an infamous psychopathic crime figure.
When oil is discovered in 1920s Oklahoma under Osage Nation land, the Osage people are murdered one by one—until the FBI steps in to unravel the mystery.
While struggling with his dual identity, Arthur Fleck not only stumbles upon true love, but also finds the music that's always been inside him.