Heart of the Stag (1984)

Heart of the Stag (1984) takes place in New Zealand on what the presiding rancher has decided is a stag ranch. When a farmhand starts working on the family's property and develops a crush on the adult daughter, he has a horrible realization: The rancher has been committing sleeping with her while his wife is bound to a wheelchair. Needless to say, the father isn't terribly pleased with this farmhand encroaching on his territory, and things don't look good for the dude. If you can wrap your mind around the family canoodling, you'll get to see a great glimpse of Mary Regan's boobs!