Reazione Fatale, 111 min

If you can stand the bad kung-fu overdub (which you can, the bonuses outweigh the cons) then you'll see some great insight on a relationship that was saved from its own precipice. This guy's girlfriend, or wife catches him cheating and confronts the other female about it. They come up with a very creative and daring way to catch the husband in the act, as WELL as revitalize their relationship. We should all wish that this was actually possible.