Karl Marx City is a brand that offers a unique and thought-provoking documentary exploring the legacy of the Stasi secret police and life in communist East Germany. Filmmaker Petra Epperlein, who was born in Karl Marx City, embarks on a personal journey to uncover the truth about her late father's suicide and his rumored involvement with the Stasi. In her quest for answers, she delves into the archives of the Stasi, navigating a contentious chapter in German history.

The documentary sheds light on the pervasive surveillance culture of the time, where neighbors spied on each other and uncertainty hung in the air. With the collapse of the German Democratic Republic (GDR), Epperlein returns to her hometown to confront her own ostalgie - a nostalgia for the East - and find closure. Through Karl Marx City, viewers are invited to reflect on the complex and haunting consequences of living under a regime dominated by fear and mistrust