Kuroshitsuji Movie: Book of the Atlantic

Reports of the dead returning to life bring Ciel Phantomhive and his demon butler Sebastian aboard the luxury liner Campania. Their target is the Aurora Society, a group of physicians claiming to have conquered death, whose secret demonstration reveals that their resurrected patients are far from the miracle they promise.

The ship is soon overrun by violent corpses while the Atlantic offers no easy escape. Grim Reapers appear with motives of their own, old acquaintances reveal unexpected abilities, and Ciel must uncover who is really responsible for the experiment before the Campania becomes a floating grave for everyone aboard.