This is a nine episode miniseries about police officers who seem to be underemployed, as they don't otherwise seem to be doing much about crime. Kiriyama decides as a hobby to solve expired cases, meaning there is a 15 year statute of limitations on catching a murderer. He confronts the persons that knew the victim and does some honest detective work. With him is Mikka, who helps him in his endeavors and seems to have a crush on the somewhat enigmatic Kiriyama. Every episode is stand alone and fun to watch. Its not a binge watching drama, it works best if you watch one per week. Its billed as a comedy, and it does have comedic overtones. Kiriyama confronts the killer and the episode is over. Not a great drama but worthy of your time.