Reminds me of The Last Duel, an excellent movie told from three different perspectives, one after the other. It doesn't tell you who to believe, only presents the three testimonies. And the actual duel, though that might be from the woman's perspective, since she was there for it.

Plot is basically, woman accuses her husband's friend of insulting her. Her husband has a rocky relationship with the local lord, who favours the accused, so he suggests they duel to the death to decide the truth of the event.

It's an actual event that happened, and even the historical account isn't sure who was right. I'm inclined to believe she was, because her story involving the two guys is different from their own, and they both make themselves out to be saints, while she makes them out to be human.