Dead Heart (1997)

Ray Lorkin, chief lawman in the tiny rural settlement of Wala Wala, Australia, fears that long-simmering tensions between the area's aborigine natives and white settlers are on the verge of erupting. When it's discovered that Kate, the white wife of local schoolteacher Les, has despoiled a sacred site by secretly meeting her aborigine lover, Tony, there, a shocking murder threatens to rip the small town apart.