In 1930s Berlin, Dr. Jakob Fabian, who works by day in advertising for a cigarette company and by night wanders the streets of the city, falls in love with an actress. As her career begins to blossom, prospects for his future begin to wane.
August 13, 1961: The passengers on the interzonal train from Munich to East Berlin learn 3½ hours before crossing the border that the Wall is being built in Berlin. They have 3½ hours to make a life-changing decision: to get off the train or keep going.