Bakeneko: A Vengeful Spirit (1968)

Bakeneko: A Vengeful Spirit 1968 / 怪猫 呪いの沼 1968 / Kaibyô nori no numa , Kaibyo nori no numa , Kaibyô noroi numa , The Cursed Pond , Ghost Cat of the Cursed Swamp

Nabeshima Naoshige murders his lord, Ryuzoji Takafusa, seeking to gain power and steal his Lord’s wife. To avoid her fate of marrying him, Lady Takafusa drowns herself along with her cat in a nearby marsh. A decade later, Naoshige’s efforts to steal another woman trigger a vengeful curse on him when she also commits suicide at the same marsh — forcing him to suffer the consequences of his past actions.