Premieres April 5th as part of Toonami in their Adult Swim block. There are two new PVs released. The first of which is English dubbed. The second is in Japanese. Check out the Anime Trending article for additional information. Synopsis from AniList:

The most exquisite hotels in the world have certain standards: the finest food, the most sublime comfort, captivating entertainment, the latest weapons, reliable identity fabrication, and untraceable corpse disposal.

The name of this place where the people who have “forgotten their humanity” visit is “Hotel Inhumans.” The hitmen guests are welcomed by the concierges who never say “no.”