Black Butler: Book of Murder

The anime follows the Phantomhive Manor Murder arc. Earl Ciel Phantomhive hosts a banquet and it is attended by many nobles and the struggling writer, Arthur Conan Doyle. However, things got intense after couple of murders transpire.

Just like Book of circus, this has been adapted pretty well. The storyline is brilliant. Initially, it looked predictable but there are still some surprises for us in the end. Even though, Ciel and Sebastian are the main characters, Arthur Conan Doyle was used as the perception of us viewers for the most part just for him to realise in the end that it's not worth knowing everything. Nevertheless, he was one of the few characters who ended up gaining something out of all the mess. I also liked how Snake became a part of the Phantomhive Manor staff. The character has all the potential and could be useful for future storyline.

Yes, I recommend this but make sure to finish Book of circus first.