The film picks up the story of Arthur Fleck (Joaquin Phoenix) now confined to Arkham Asylum, where his fame following the events of the first film has turned him into an idol. There, he meets an inmate named Lee (played by Lady Gaga), who is fascinated by his story. Arthur, who has always longed for acceptance and love, feels special because someone finally "sees him and loves him." What Arthur doesn't realize is that she doesn't love the fragile Arthur Fleck, but rather the symbol of chaos, the Joker. She begins to manipulate and corrupt him, encouraging him to escape and embrace his darkest side. They escape Arkham and form a criminal alliance, building an organization of followers and plunging into a crime spree inspired by Bonnie and Clyde and with the dark aesthetic of Sweeney Todd. Throughout this journey, Arthur progressively loses his humanity for her sake, becoming more ruthless, cold, and calculating: the Joker we know from the comics. Key Moments and Epic Finale: 1. The Final Betrayal (The Climax): The film's turning point occurs after the gang's final heist. The couple escapes in a helicopter. In an emotional and deceptive monologue, the Joker thanks Harley for transforming him. She, proud and happy, believes they have triumphed together. It is then that he reveals the truth: "I've realized I can't be the Joker completely yet... because I love you so much. And that's why this is where you stop, my love." He then pushes her out of the helicopter. His love becomes the final catalyst for his pure evil. 2. The Birth of the Classic Look: In a later scene, at his new secret base, the Joker sheds his old clothes and dons his iconic purple suit and classic makeup, similar to the design in Batman Under the Red Hood, completing his physical transformation. 3. The Iconic Musical Closing (Film Ending): The film ends with the Joker, dressed in his classic suit, singing and dancing to Frank Sinatra's "My Way." The lyrics perfectly reflect his journey. After the final line, "I can go on all the way... My way," the music stops. He relaxes for a moment and looks directly at the camera. With a laugh of utter madness (not the laugh of his condition), and clutching his head as on the iconic cover of Batman: The Killing Joke, the film ends, leaving the audience with chills and ready for the Batman universe.
