I so agree with the visualization, I didn't notice myself but the set up is very clear to me in Shutter Island thanks to the movie and I do struggle to place everything visually normally, confused the whole time about where that bush is and those trees, behind the house, front of the house? The thing about finding all the details I ve heard that many times from you all it seems recurring. I do enjoy that part too but yes knowing the plot is a bit depressing to me.