Leaked: Harley Quinn’s Origin Revealed in Suicide Squad Set Photo

Over the past two decades, Harley Quinn, the Joker's frequently battered better-half, has emerged as one of the D.C. universe's most beloved antagonists. The madcap maniac, equal parts homicidal and hilarious, ping-pongs from cold-blooded killer to comic relief and sometimes plays both roles simultaneously.

She's the big draw for D.C.'s upcoming Suicide Squad and--comic book nerds rejoice--it seems that they're keeping her origin story pretty close to cannon.

Thanks to Ingrid Kleining, Margot Robbie's Suicide Squad stunt double, we now have a clue about how the film will present Dr. Harleen Quinzel's transformation to Harley Quinn.

Kleining posted a photo from the Suicide Squad set to Instagram, then deleting her entire Instagram a while later. Uproxx managed to get a screen grab before the account was deactivated.

That's the Ace Chemicals logo. For those of you not in the know, Ace Chemicals played a pivotal role in the Joker's origins (he was thrown into a vat of their chemicals, bleaching his skin and turning his hair green) as well as Harley Quinn's.

Dr. Harleen Quinzel was an Arkham Asylum shrink who fell victim to the Joker's mind games, thus kicking off one of comic books' most dysfunctional and abusive relationships ever penned. We already know, thanks to the leaked set video, that Robbie will play Qunizel pre-Harley at some point in the film, but now it seems that the film's directors are following through with the rest of Harley Quinn's genesis laid out in Suicide Squad volume 4, issue 7.

In that issue The Joker throws Dr. Quinzel into the same chemical bath that made him. After an existential crisis, Quinn embarks on a quest for revenge, going after everyone who put her Mista J in Arkham Asylum.

Along the way Quinn's had various romantic tryst with fellow super-villainess Poison Ivy, while in the end always going back to her Puddin'.

Quinn's storyline has always been a sensitive subject--it's darker sides have been addressed in graphic novels rather than television or cinema--and it remains to be seen how director David Ayer will portray this tragic, but in parts darkly slapstick comedic origin tale. Let's hope he's done it justice...or injustice in Quinn's case.