In this book, art plays a significant role. Museum director Alexander Kahn is carrying out some research to find the original of the work 'City of towers', a drawing by Paul Klee from 1929. In his search the protagonist must penetrate the darkest spaces of the city, physical and mental tunnels of the human condition. With a technique similar to a comic strip and an exaggerated humour, the author explores the limits and value of things, social relations, deceit, fraud and stupefaction.