In Black Butler: Book of the Atlantic Movie 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?