Joaquin Phoenix returns to his Oscar-winning role as Arthur Fleck aka Joker who, following the events of the 2019 smash-hit, finds himself imprisoned and receiving psychiatric treatment in Arkham Asylum where he inexplicably finds love. Director Todd Phillips continues the standalone story with a bold new chapter in the life of - and according to - Joker with a highly-anticipated sequel that depicts his whirlwind romance with Harley Quinn, played by Oscar and Grammy-winning sensation, Lady Gaga.