Dr. Harley Quinn has confronted horrific crime scenes created by a serial murderer who treats his work as high art. But when she is confronted by the killer himself, her life takes a drastic turn. Will she be able to return to the status quo, and simply help the GCPD to catch this killer? Or will the encounter change her forever?

Harley Quinn’s past and present have collided, and both the family she was born into and the family she found when she met Edie Malone are suffering. As Dr. Quinn’s confrontations with the serial killer she’s hunting grow more intense, his actions lead her down a dangerous path!

Harley faced The Joker in her home, and now she faces him again. This time, she knows he killed her roommate. This time, she knows he’s toying with her. This time, she’s in danger of losing her reputation with the GCPD instead of her life. Their electrifying encounter will have consequences for the rest of her life-but is she ready?

Harley Quinn follows the evidence-and it leads her to a dangerous conclusion: she might know the true identity of the serial killer she’s hunting. But as Harley digs deeper into The Joker’s past, he is watching her…and leaving a trail of bodies in his wake. Gotham City has never needed a hero more!

When murder is your art, it’s not enough to leave behind a body-the only true satisfaction lies in creating a display worthy of your genius. But elaborate crime scenes also lend themselves to analysis. While the GCPD might not find all the clues, forensic psychiatrist and profiler Harley Quinn is getting closer to the truth…and the killer.

Joker – Harley – Criminal Sanity #1 (2019) : In Gotham City, where heinous acts of violence are a daily occurrence, the GCPD relies on Harley Quinn, a young forensic psychiatrist and profiler, to consult on their toughest cases. But Harley is haunted by one unsolved case-the night she discovered her roommate’s body marked with the signature of a notorious serial killer known as The Joker. Five years later, the case remains unsolved and a new series of horrific murders occur throughout the city. As the murders escalate, Harley’s obsession with finding the depraved psychopath responsible leads her down a dangerous path. When the past and the present finally collide, Harley has to decide how far she is willing to go-and how many lines she is willing to cross-to solve these cases once and for all. Written by #1 New York Times and international bestselling author Kami Garcia (co-author of Beautiful Creatures, author of Unbreakable and X-Files: Agents of Chaos) with art by Mico Suayan (Bloodshot: Reborn) and Mike Mayhew (The Star Wars), JOKER/HARLEY: CRIMINAL SANITY introduces readers to a Joker and Harley Quinn unlike any they’ve seen before, utilizing forensic psychiatry, behavior analysis (profiling) and psychological profiles to create a true-to-life take on these iconic characters that is more terrifying than any psychotic fantasy.

In Gotham City, heinous acts of violence occur daily. Harley Quinn, forensic psychiatrist and profiler, consults with the Gotham City Police Department on its worst cases. But one unsolved murder still haunts her-the night Harley discovered her roommate’s body marked with the signature of a notorious serial killer known as The Joker. Five years later, the case remains unsolved, as a new series of horrific killings begins. When the murders escalate and the meticulously constructed crime scenes become more elaborate, Harley’s obsession with finding the depraved psychopath responsible leads her down a dangerous path. The past and the present finally collide, and Harley must decide how far she is willing to go-and how many lines she is willing to cross-to solve these cases once and for all. Written by #1 New York Times and international bestselling author Kami Garcia (Beautiful Creatures, Unbreakable, The X-Files Origins: Agent of Chaos) and drawn by Mico Suayan (Bloodshot Reborn), Jason Badower (Wonder Woman ’77), and Mike Mayhew (The Star Wars), Joker/Harley: Criminal Sanity introduces readers to a Joker and Harley Quinn unlike any they’ve seen before, utilizing forensic psychiatry, behavior analysis, and psychological profiles to create a true-to-life take on these iconic characters that is more terrifying than any psychotic fantasy. Collects Joker/Harley: Criminal Sanity #1-8 and the one-shot Joker/Harley: Criminal Sanity-Secret Files.