Black Butler: Book of Murder is a oVA anime that premiered in fall 2014, produced by A-1 Pictures.

About the production: the story comes from a manga, there are 2 episodes of about 58 minutes and its current status is "finished".

Its main genres are comedy, fantasy, mystery and supernatural, with themes such as Demons, Crime, Butler and Detective.

On AniList, Black Butler: Book of Murder has an average score of 78%, a very good score, and appears on 48,398 users' lists.

The franchise continues in or follows from: Kuroshitsuji: Book of Circus and Kuroshitsuji: Book of the Atlantic.

At the Queen's behest, young master Ciel Phantomhive hosts a lavish banquet to be attended by the crème-de-la-crème of London's elite. What begins as a fabulous affair quickly takes a dark turn when guests begin turning up dead! Should Sebastian and Ciel wish to once more see the light of day, they must join forces with their guests, including the legendary author Sir Arthur Conan Doyle, to unravel the mystery – and apprehend the murderer before it's too late! (Source: Funimation)

Official synopsis from AniList.