After his reign of terror in The Dark Knight, the criminal mastermind known as the Joker is now locked up in Arkham Asylum where he continues to wreak havoc as he slowly becomes a threat much greater than anyone expected.

The following recordings are for the expressed purpose of medical research and is the sole ownership of Gotham City's Arkham Asylum Psychiatric Rehabilitation Program staff and facilities. Doctor H. Quinzel is currently responsible for the video sessions for Patient #4479 and are intended for her viewing and the hospital team's viewing only.—Anonymous