Don't know much about it other than they play lovers, there are some "controversial" sex scenes and there is supposed to be frontal nudity. Sold me on seeing it - who cares about plot.
The truly beautiful should be lawfully restricted from wearing clothing; and the truly butt-ugly should be lawfully mandated from going naked.
It's a very stark and bleak description of how these two ranch hands discover they are sexually attracted to each other, but are never able to commit to it or each other in any way. They go their own ways, coming together every now and then to re-connect, but never accept it for what it is - and in the end basically lead miserable lives apart from each other.