Follows the efforts of a certain police detective Mashiba who finds himself drawn into a difficult murder case with multiple suspects but few initial leads.

In the meanwhile, more murders cut through the city.
Is this the work of the same killer as the previous one and the ones before it that have been making the headlines recently?

The investigation reveals a complex web of interpersonal connections in the shadows of the case as the personal lives of people involved with the victim Toshiya Kanzaki are laid bare by Mashiba's work.

After a painstaking and arduous investigation, will he be able to identify the culprit?

[Edited from the official website]