Vengeance with a Smile

The Joker has been in Arkham Asylum for over a year, he's somehow managed to have his psychiatrist, Harleen Quinzel, fall insanely in love with him. With her help, she breaks him out and transforms into her alter ego, Harley Quinn. Together they embark on a plan to get revenge on Jim Gordon who faked his own death leading the Joker to get caught and sent to Arkham.