I am requesting a spoiler for "A History of Violence", please

[Flaxbee]

Watched part of it last night and had very disturbing dreams, and my family didn't want to finish it today and I just got too busy myself to catch the rest of it. Also found some of the shots of gory faces and blown-in heads a bit much, but the story was intriguing and the acting terrific.

I'll most likely see it through one of these days, but will someone who's seen it finish the story for me?

I got through to when Tom/Joey went back to Philadelphia to see his brother, his brother said "You could die" and Tom/Joey was attacked from behind. At that point, I'd had enough for one night.

Please, please tell me what happens from there on out... I'd very much appreciate it.