The man at the center of this feature lives a mundane life. He is employed as are all figures in this film. What we have here is technology reduced to human terms, where taxi drivers actually carry people on their backs. Where a man literally is a doormat to his boss. Obviously, all is metaphorical. It's interesting how many of these short features show life as being pointless and depressing. Jean-Paul Sartre, you have been proved correct.
