Director Martin Miotk accompanies cultural journalist Marion Christen on her search for the true origins of avant-garde music. Her discovery: six East German artists (Dagmar Gelbke, Giso Weissbach, Barbara Lauritzen, Gabriele Thöns, Sabine Deskouw and Desireé Mansky Kalauke) not only produced the most important innovations of New Music, but still indulge in a subversive cultural underground.

The sprightly pensioners have always officially posed as pop and entertainment stars. However, they disguise their current appearances as nostalgia shows and dance teas, when they already had to hide their avant-garde artistry in the GDR. These pioneers of radical modernism are now pushing to the public to present their "Ostravaganza" to a broad audience.