An exile from his native land following the failed revolution of 1848, the impoverished Richard Wagner's is in Zurich working on his opera Tristan und Isolde. There he meets Otto and Mathilde Wesendonck, ardent admirers of his music. Wagner's passionate and scandalous affair with Mathilde, whose poems he set to music, is explored in this featuring film by director Jen's Neubert. After their relationship ended, Wagner left Zurich for Italy, forever remembering Mathilde as 'my first and only love'.