Red Garden is a supernatural horror anime produced by Gonzo studios.
The Red Garden anime is comprised of the 22 episodes long TV series (that aired from 2006-2007) and a 45 minutes long OVA titled Dead Girls. There is also a manga adaptation of the same name and a light novel adaptation titled Red Garden ～Whereabouts of Deep Darkness～.
The main story follows the personal struggles of the four protagonist girls: Kate, Rachel, Claire and Rose as they find out they were killed, then revived as members of the Animus clan and forced to participate in the century-old feud between the Animus and the Doral.
For more information, see the Wikipedia article or the MAL entry.
