I am ashamed to confess that I mutated to a couch and TV potatoe and a junkie of boring TV series during my imprisonment due to the heat wave during the last weeks. In order not to scratch the wallpapers off the walls, I was trapped especially by a production made in the old rolling mill in Pulheim. Again and again scenes were shown with the background of an intersting graffiti wall. That did not exactly contribute to my satisfaction; the heat went on and on endlessly. I decided to visit Pulheim first, when it gets cooler. I had not considered that the production was a long time ago. The wall must have been overpainted several times after the production of this TV series and it seems that it is inactive actually.