In this startling psychological thriller from Japan, Mami is a teacher who meets Tomo, a psychotic criminal with a short temper and no visible means of support. Amour fou blooms between them, and a year later they're living together, with Mami taking part as Tomo abducts, tortures, and kills one of their neighbors. Eventually the cycle of crime goes too far for Mami and she leaves Tomo, but several years later, he arrives at her home to disrupt her life with her new husband.