Musical genius, political hero and racist demon, the life of Richard Wagner reads like the ultimate Boys-own story. The Ring cycle is regarded as one of the finest achievements of the human soul. This documentary examines the connections between Wagner's own spiritual vision and his art, including coded anti-Semitic references in his music and the techniques he used to mesmerise his audience. It is filmed in Switzerland, Italy and King Ludwig's Bavaria. Musicians include the world's greatest and most controversial performers.