The Emperor's Naked Army Marches On

This guy is really something. A raving mad and very dangerous man, Kenzo Okuzai spares no effort to atone for his formerly sinful and wasted life. Sometimes accompanied by the relatives of two army officers executed on false charges, Okuzai confronts the six executioners and their commanders in their homes, without notice. He demands they tell the truth, physically attacks them when they are disrespectful, and offers to call the police if the man wants. All the while, Okuzai relentlessly pursues the truth, which is probably that the murdered men went straight onto the menu.

This doco is, by turns, sickening, fascinating, compulsive .... and excrutiatingly funny. Not easy to watch, but highly recommended.