Cain at Abel (1982)

In this modern-day version of the biblical legend on Cain and Abel, strong-willed matriarch Señora Pina favors her younger son Ellis over the older Loren whom she blames for the death of her husband. Ellis grows up cowardly and spoiled while Loren becomes a responsible family man despite his increasing resentment towards his mother. What began as a sibling rivalry develops into a deep feud that would later escalate into a large-scale war - with all the mayhem and bloodshed.