Tell me if this dosen't sound like the perfect film. A fustrated wife strikes up a lesbian affair with a free spirited photogapher. In that one sentece is a recipe for all sorts of soft core fun, but while My Wife's Lover (as it's called here in the US) has all you might expect with leering sex scenes of all kinds (there's one lady who REALLY appears to like potato chips), the movie lacks joy, and frankly the characters are all either nerotic or cheaters.
The movie dosn't have the goofy weirdness of other Asian Catagory III films (the equilvilant of the NC-17 rating), it's might be worth seeing once for those who are intrested in this kind of thing.