Detective Comics #23.2 – by Matt Kindt and Neil Googe – depicted Harley's first stay Arkham Asylum, prior to her corruption by the Joker. This was a New 52 retelling of how Harley Quinn met ...

In the comics, Harleen Quinzel is a psychiatrist the Joker falls in love with while he's institutionalized at Arkham Asylum, and she becomes his partner in crime. The original movie, you'll recall ...