Forbidden Love (1921)

Harold and Peter Van Zandt, sons of New England fisherman John Van Zandt, are in love with Eileen Arden, who favors Harold, the younger and gentler brother. The jealous Peter convinces Eileen that Harold is circulating false rumors about her, then convinces his younger brother to move to Boston, Massachusetts. Six years later, John is unable to work so Harold returns to help support the family, finding employment as a lighthouse keeper. Peter becomes jealous once again, and his drunken rage results in the death of his child, Anne, whose weak heart is unable to withstand the excitement. After realizing that Eileen knows of his deceit years earlier, Peter attempts to kill Harold in the lighthouse, but instead falls to his own death during the ensuing struggle.