Black Butler - Book of the Atlantic
黒執事 Book of the Atlantic (original)
Ciel Phantomhive and his demonic butler, Sebastian, are back--but their next case has them treading some rough waters! Aboard the luxury liner Campania, the two investigate an illegal human experiment that involves resurrecting the dead. But the closer they get to the truth, closer they are to their own deaths! Will this be their final case, or will one hell of a butler keep them afloat?
Starring Daisuke Ono, Maaya Sakamoto, Yukari Tamura, Junichi Suwabe, Jun Fukuyama, KENN, Noriaki Sugiyama
It's a action & adventure and animation movie, and has a rating of 7.6 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Finland.