Seoul is a fascinating metropolis that combines space-age architecture with ancient values. However, the modern appearance of the city has a high price. Every year, window cleaners risk their lives letting themselves down the glass facades of skyscrapers on a rope. Recently, though, the number of accidents has been falling significantly. Lifting platforms equipped with hydraulics from HAWE raise the window cleaners to their workplace in the clouds as Seoul moves further on up the ladder of progress.