Life at the prestigious Q High School for Girls in Tokyo exists on a precise social axis: a world of insiders and outsiders, of haves and have-nots.

Beautiful Yuriko and her unpopular, unnamed sister exist in different spheres; the hopelessly awkward Kazue Sato floats around among them, trying to fit in.Years later, Yuriko and Kazue are dead — both have become prostitutes and both have been brutally murdered.