Sword of the Beast (獣の剣, Kedamono no ken, also called Samurai Gold Seekers) is a 1965 jidaigeki film co-written and directed by Hideo Gosha. Set in 1857 at the end of the Tokugawa Shogunate, the story follows a fugitive samurai who's killed a counselor in his clan, to a mountain where he meets another samurai who is poaching gold.
Gennosuke is a rebel samurai on the run, having fled his clan after assassinating a counselor. The daughter of the counselor, Misa, and her fiance, Daizaburo, pursue Gennosuke along with other samurai from Gennosuke's clan despite Gennosuke's obvious superiority as a warrior. A series of flashbacks reveals that Gennosuke was manipulated into committing the treason by one of the clan's higher-ranking samurai, who led Gennosuke to believe that the counselor's death would result in modern reforms to the clan and in Gennosuke's promotion to a full-fledged retainer, instead of a lowly foot soldier. In fact, the ranking samurai simply wanted the counselor killed so that he could succeed to the position himself. He had used Gennosuke to do the "dirty work", and then abandoned Gennosuke to face the consequences of the crime.
As Gennosuke flees, he is given refuge
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