I started to watch this drama because it seemed like it would be a serious detective genre/type of show, but I was completely surprised with how amazing it was! The plot twists were super unexpected, the comedy and romance were added in just right, and the acting was fantastic! The cast did really well; it was almost a story within a story! I really enjoyed Erika Toda's acting as well, she's an actress I recently started to like after the SPEC and Keizoku series; and the Kagi no Kakatta Heya series, too! Definitely recommend this because of the actors (Ninomiya Kazunari, Jun Kaname, etc...) but it's also a really good show based off of a novel; which in my opinion doesn't happen that often.