New Joker: Folie à Deux set photos just dropped, and they contain major spoilers for Harley Quinn's storyline in the upcoming sequel.

The behind-the-scenes snaps come via Instagram and Reddit. Together, they document a scene unfolding on what appear to be the steps of a Gotham City courthouse, with Quinn (Lady Gaga) present as her civilian alter-ego, Harleen Quinzel. A notable detail in several of the photos is a prop newspaper with Quinn's Arkham State Hospital mugshot plastered on its front page. This, coupled with the newspaper's headline text, confirms that the Joker: Folie à Deux incarnation of Harley Quinn is both an Arkham patient and the Joker's lover, in keeping with her DC Comics backstory.

Related: Joker 2 Set Photos Show Joaquin Phoenix Isn't the Only Clown Prince in Gotham

Joker: Folie à Deux's Harley Quinn differs from her comic book counterpart in at least one major way, though. Previously released set photos revealed that Quinn won't sport her iconic bodysuit in the Joker sequel, despite its enduring popularity since Quinn's debut in Batman: The Animated Series. The fan-favorite character won't don attire modeled on any of her subsequent appearances in other media, either. Instead, the Joker: Folie à Deux version of Harley will wear an outfit that includes a red blazer and black leather skirt, as well as diamond-shaped eye makeup.

Joker 2 Plot Details Continue to Surface

Exactly how and when Harleen Quinzel will undergo her transformation into Harley Quinn in Joker: Folie à Deux is currently unclear. That said, photos and footage from the shoot continue to surface online, slowly filling in the blanks regarding the follow-up film's story and characters. This includes a video of the Arkham State Hospital set that apparently shows the infamous medical facility erupting in flames. It's possible that Joker (Joaquin Phoenix) is either directly or indirectly responsible for the blaze, however, this is pure speculation at this stage.

Related: Joker 2 Set Photos Show the Clown Prince Free from Arkham Asylum

The Arkham set video isn't the only behind-the-scenes material driving fan theories. Photos taken during filming of one of Joker: Folie à Deux's protest scenes are responsible for online rumblings that the sequel will include Harvey Dent in some capacity. The photos include a handmade sign that reads "Dent is a Clown," which implies the district attorney (better known as Batman villain Two-Face) is in the movie. It's worth noting that neither DC Studios nor Warner Bros. Pictures have officially confirmed Dent will appear in Joker: Folie à Deux, and no actor is currently cast in the role.

Joker: Folie á Deux arrives in theaters on Oct 4, 2024.

Source: Instagram, Reddit