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Known in Japan as Suicide Circle (自殺サークル Jisatsu Sākuru) is a 2002 Japanese independent horror film that gained a considerable amount of notoriety in film festivals around the world for its controversial subject matter and gory presentation, and has since developed a significant cult following. It won the Jury Prize for "Most Ground-Breaking Film" at the Fantasia Film Festival. The movie was written and directed by Sion Sono. It deals with a wave of seemingly unconnected suicides that strikes Japan and the efforts of the police to determine the reasons behind the strange behavior.

The film takes place in a period of six days, with footage from a fictional pop group "Dessert" opening the movie, and closing during the credits.
Tokyo, May 27th, 54 teenage schoolgirls commit mass suicide by throwing themselves in front of an oncoming train. Shortly after, at a hospital, two nurses commit suicide by jumping out of a window. At both locations rolls of flesh are found, with the missing skin matching removed flesh on corpses. Three detectives - Kuroda (Ryô Ishibashi), Shibusawa (Masatoshi Nagase), and Murata (Akaji Maro),are notified by a hacker named Kiyoko (Yoko Kamon) of a link between the suicides and a website, which shows the number of suicides via red and white circles.
May 28, at a high school, a group of students jump off the roof during a lunch break, due to an escalating series of events, sending the city in search of a "Suicide Club".