This Filthy Earth (2001)

Sisters Francine and Kath run a rundown farm left them by their parents. Kath is a single mother whose primitive and swaggering boyfriend, Buto has an unpredictable and sometimes violent disposition. She loves him, but his past behavior has earned Francine's enmity, and she's not at all happy when Kath announces that Buto has finally asked for her hand in marriage. Meanwhile, Lek, a stranger and hired hand on a neighboring farm, takes a shine to Francine.