400 Days (Movie) - Review and Ending theory

If you are like me, after watching the movie 400 Days, you immediately went on line to google the ending. You probably screamed at the screen and or just scratched your head. After watching the movie for an hour and a half, I decided to go back and watch it in pieces, breaking down the movie so I could rest easy about it.
Yes, I’m not kidding, the movie will drive you nuts because you think there just aren’t enough clues. But there are. It's well written and well acted.
If you haven’t seen 400...