Schlager is the stalwart of German pop culture and emerges stronger from every modernization crisis. But what are the stories behind the flawless backdrop of the German Schlager world? What makes Schlager stars true artists and German songs a perennial commercial success? The 90-minute documentary "Deutschland Schlagerland" goes in search of the personal stories behind the music, travels to provincial stages and big cities, talks to producers and performers. The aim is no less than to explain and understand the social and cultural phenomenon of "Schlager" in its entirety.