i get a s strong hint of a concentration camp.
If you choose to view it in that manner-note the shadow aspect of the people, are they ghost returning to see where they died?
Are they forever bound to return, again and again to these wall of horror?
What role does the son, have his long dead parent's lost their way so he leads his parents (now ghost) back to their last home.
The son is also shadowy, meaning he was a victim.
Note the barbed wire in picture two on top of the brick wall.
I was not going to mention that, but the transparent aspect of the picture sent my mind there.
Lee certainly did not mean that, it is just our jaded experiences that send us to place is we should not go.A