The third book of the Tokyo MPD mysteries, this one has Teruo dealing with his past when a killer he failed to catch ten years ago surfaces again. 

Ten years ago, a serial killer called the Violet Killer had targeted working women with small children and left a bunch of violets on their bodies. Despite the brutal way they were murdered, the police could find few clues. Megumi who was working homicide back then was used to bait the killer and barely escaped with her life. Teruo chased the killer but couldn't catch him. 

Now, a body has appeared bearing the violets and the MO of the killer. Teruo and Megumi has both to deal with the past while Shinji is trying to deal with a co worker Furuya who is making veiled insinuations about his relationship with Teruo. 

Teruo has to find the truth about his healing powers which means talking to his estranged family. With the pressure of knowing that the soul ward can only last for a few more months, and under pressure to catch the killer and to talk to his parents, he is one step away from breaking. 

I love how Teruo and Shinji support each other here. They are the perfect couple who put each other and their needs above societal and work expectations. Though the mystery is solved regarding Teruo's healing powers and the killer is caught, the road ahead has still more bumps as their relationship has been outed and supernaturals are taking over the MPD. 

I'm eagerly looking forward to reading the final book of this series when it releases!