Kurohime: Shikkoku no Yakata / 黒姫 -桎梏の館-

A camping trip takes a turn for the wild when the group discovers a mystery mansion in the woods. Excitement turns to thrills of terror as people begin to disappear. Too late, they realize they are trapped in the clutches of a mysterious woman. Who is that woman and will the group of campers be able to escape the remote mansion? (Source: AniDB)...