cannot find old asian erotic movie

movie was set in village.

there is impotent husband.
then husband asks neighbour to have intercourse with her wife.
wife agrees only if he will be there holding her hand.
one day husband returns from work he catches her and that man but wouldn't do anything about it and cries.

then two men kill him for some reason.
then his wife revenges killing those men and ends up with that neighbour.

I watched this as a kid and cannot find it anywhere.