The piece of paper on the bottom of Joe's shoe

What was the importance of the bit of torn paper that was on the bottom of his shoe? The director made a point of it more than a few time and then at the end when it was transferred to Joe's Ex.

One thing I noticed... When the piece of paper stuck to Joe's ex's shoe, it seemed to me that, what was happening to Joe, started happening to her - with the sounds and paranoia.

DM


"" luoS siH eM dloS liveD ehT ""