The Sword of Doom

A sociopathic samurai named Ryunosuke participates in a fencing match, but his opponent's wife asks him to throw the match in exchange for her virtue. Ryunosuke accepts, but ends up killing his opponent. He is then pursued by the man's brother, who is trained by the skilled fencer Shimada. Meanwhile, Ryunosuke faces challenges from the group of assassins he works with, leading to a final confrontation.