Wolfgang Stoecker is on a mission to explore the cultural meanings of dust. Cologne-based artist Stoecker has collected samples of dust from historic buildings across Europe and beyond. With the help of scientists and an electron-microscope, he has analysed the dust and discovered it contains tiny fossils, particles from the Sahara, pollutants of various kinds and human debris. He is fascinated by what dust can tell us about human culture and history, and proves an engaging and charismatic host in this thought-provoking, witty documentary. Produced by Mary Ward-Lowery.