Joker - Harley - Criminal Sanity #1-8 + Special (2019-2021)

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.