Loosely based on a true story, this is a grim yet fascinating glimpse into the present criminal justice system in Japan. A move to afford greater rights to victims has corrupted itself into a perverse 99.9% conviction rate at the expense of the innocent. (FYI, English Wiki has it wrong regarding the events that followed the real-life 2005 case.)
While it's long and somewhat drawn-out, this based-on-a-real-story court drama is engaging and successful in pointing out some of the failings of the Japanese justice system while avoiding the pitfall of ignoring the real problem of public transport molestation.
Chilling portrayal of a "justice" system more focused on social status than actually seeking the truth. You will feel frustrated watching such absurd sets of ritual being display here, but this kind of story needs to be told.