Trevor Cawood is a movie director that has been noticed in a number of short movies in the world of advertising. Personally, I noticed ads for Citroën and for GMC. But you must remember him for his participation to the special effects of The Matrix Reloaded (Matrix 2) or The Matrix Revolutions (Matrix 3). But in 2007, he directed this short movie that I found some time ago.
A mere business worker seems to be choosen by an impressive creature of cement (a golem, maybe). Permanently stalked and followed, he has to learn to live with it.