Kurohime: Shikkoku no Yakata
English name: Black Widow
Genres: Hentai
Type: OVA, Episodes: 2
Aired: May 31, 2002 to Mar 28, 2003
Studio: Mook Animation
Source: Visual novel
Rating: Rx - Hentai
Synopsis:
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)