The protagonist of the film is Zinovy Tennenboim from St. Petersburg. He works as a mechanic for the city service "Vodokanal". For 30 years he has been climbing into manholes and repairing cranes. In another time, in another place, perhaps he could have been a scientist or a writer. But he is content with his fate. He loves his job. He knows how to be happy. The film is a participant of the IFF of Documentary Films in Leipzig, a participant of the INPUT-2005 final (San Francisco).