Shutter Island

Several chapters into Shutter Island, I decided - oddly - that I wanted to see the movie first as the book was sitting oddly with me.  I knew from reviews that the ending was messed up but I didn't expect that.

( Shutter Island Reaction and Spoilers )

This is one of those movies where I think I need a hug afterward and I'm only partly sure I know why I want a hug.