Lady Gaga plays Dr. Harleen Quinzel, aka Harley Quinn, in the “Joker” sequel. File Photo by Jim Ruymen/UPI

Dec. 26 (UPI) — Lady Gaga and Joaquin Phoenix appear in new photos from Joker: Folie À Deux.

The film’s director Todd Phillips shared photos Monday featuring Gaga as Dr. Harleen Quinzel, aka Harley Quinn, and Phoenix as Arthur Fleck, aka the Joker.

Joker: Folie À Deux is a musical sequel to the 2019 film Joker, directed by Phillips and starring Phoenix.

The new movie will explore how psychiatrist Dr. Quinzel (Gaga) and her patient Arthur (Phoenix) come to form a romantic relationship.

One photo shows Harley (Gaga) gazing lovingly at Joker (Phoenix), while another photo gives a look at Joker through the small window of his cell door.

Joaquin Phoenix attends the Academy Awards in 2020. File Photo by John Angelillo/UPI

“Wishing everyone a happy holiday and a beautiful new year. Oct 2024 #Joker2,” Phillips captioned the post.

Joaquin Phoenix (R) and his sister Rain Phoenix attend the Vanity Fair Oscar party in 2020. File Photo by Chris Chew/UPI

Phillips previously shared photos showing Harley (Gaga) with faded harlequin makeup.

Joker: Folie À Deux wrapped filming in April and will open in theaters Oct. 4, 2024.

Lady Gaga attends the EE British Academy Film Awards in 2022. File Photo by Rune Hellestad/UPI