Red Garden
English title: Red Garden
Japanese title: レッド ガーデン
Alternative titles: RG
Type: TV
Source: Original
Episodes: 22
Status: Finished Airing
Aired: Oct 4, 2006 to Mar 14, 2007
Broadcast: Wednesdays at 02:40 (JST)
Duration: 23 min per ep
Rating: R - 17+ (violence & profanity)
Studios: Gonzo
Producers: GDH, Sotsu Music Publishing, Future Vision Music
Licensors: ADV Films, Funimation
Genres: Drama, Mystery, Supernatural, Suspense
Themes: Psychological

Strange suicides have been taking place in New York. One day, four girls from the same high school wake up in the morning feeling tired and dizzy and not being able to remember anything about the previous night. In school, they find out that one of their classmates has committed suicide. School is canceled for the rest of the day, but instead of going home, the girls are drawn to a park by butterflies only they can see. Suddenly a man and a woman approach the girls, telling them that they all died the previous night. 

(Source: ANN)