After his exploit of madness, in the film Golden Lion in Venice in 2019, Arthur Fleck was arrested and committed to the Arkham Asylum psychiatric institution. Here he will meet the psychiatrist Harley Quinn and will establish a dangerous relationship with her.
After announcing several times that Joker didn’t need a sequel, director and screenwriter Todd Phillips was convinced to continue the story instead, which also had enormous success with the public. If in the first chapter his model was Scorsese, this time the director seems to follow a more original path, choosing the musical genre. Harley Quinn will in fact be played by pop star Lady Gaga, who will give her a less childish tone than that of Margot Robbie in previous DC Comics films.