THE INUGAMI FAMILY (1976)
The patriarch of the Inugami dynasty dies, leaving his fortune to a young woman from outside the family and grisly murders ensue.
CRUEL TALE OF BUSHIDO (1963)
After a salary-man's fiancée attempts suicide, he remembers his gruesome family history, which sees his ancestors sacrificing themselves for the sake of their cruel lords, and realises that he's about to repeat their mistakes.