Takarazuka Eiga.

This is the thrilling tale of a man who chooses to devote his life to evil. A gifted swordsman plying his trade during the turbulent final days of Shogunate rule, Ryunosuke (Nakadai) kills without remorse, without mercy. It is a way of life that ultimately leads to madness.

Ryunosuke is a sociopathic samurai. When he is scheduled for an exhibition match at his fencing school, the wife of his opponent begs Ryunosuke to throw the match, offering her own virtue in trade.