Jiken

A dead body is found in a storage area. The victim is a woman in her 20's, who ran a small restaurant. Soon after, a 19-year-old man is arrested for murder and abandonment of corpse. Lawyer Daisaburo Kikuchi, who used to be a judge, takes the young man’s case as his lawyer. The case seems to be clear cut, because the man confessed to the crimes. But, things soon change. The man denies the charges at his trial. Lawyer Daisaburo Kikuchi investigates and he soon faces the truth behind the case.
(Source: AsianWiki)
~~ Adapted from the novel "Jiken" (事件) by Ooka Shohei (大岡昇平).