Has anyone here seen Hiromu Nakamura's CONCRETE (Konkuriito)? It's based on Jôji Atsumi's non-fiction novel JUUNANA-SAI: AKU NO RIREKISHO (the tagline for it, "Seventeen, Evil Resume", is a translation of the book's title). It tells the real-life story of how, in 1989, a group of male youths in Tokyo, ranging in age from 16 to 18, abducted a 17-year-old highschool girl, raped and otherwise abused her for 41 days, then murdered her. They put her corpse into a 50-gallon oil drum, filled the drum with concrete - hence the movie's title - then dumped it in a reclaimed land area.

Like Ryuuhei Kitamura (DOWN TO HELL) and Hiroki Yamaguchi (MIDNIGHT VISCERA (Shin'ya zôki)), Nakamura (IN MY MIND (In mai maindo)) is a past recipient of the Grand Prix at the Indie's Movie Festival (http://www.the-indies.com/).

CONCRETE (Konkuriito) official website
http://www.benten.org/concrete/

Amazon.co.jp:
Jôji Atsumi's JUUNANA-SAI: AKU NO RIREKISHO
http://www.amazon.co.jp/exec/obidos/ASIN/4878935723/

Hiromu Nakamura's H.Project official website
http://h_project.at.infoseek.co.jp/