What's moral of this story?

Rating: 4/10 (5 October 2019)

It was a torture to sit and wait for almost 2 hours how a man will fail to find the courage to face and accept his trauma. Seriously what's the point? We know without sayin that this is pretty much true for all mentally ill people.
I wish I knew why his wife got so ill, what made her so crazy, and what exactly he loved her for. Somehow they've got 3 children! I mean they should had have some happy family stories too. No? She couldn't got crazy just across the sudden.
As for the trick played with audience where the story goes as he was real Marshal, they opened cards too soon. I wish they played the way we suddenly find it out only at the end.