HeizÅ Hasegawa is attacked by a swordsman on a bridge at night. The assassin escapes but leaves the scent of a woman's makeup. Meanwhile, the surly ronin Hanshiro has been at the Hasegawa household while searching for Mori, his father's killer of 20 years ago to avenge the death and become a samurai. The assassin wears a fragrant oil to mask the smell of blood...