Verlorene Landschaft 1992 on netflix

Elias, born at the end of the war, receives an anonymous phone call on his 47th birthday: his parents are dead. He is now a successful politician, but thirty years ago he had fled from his home and parents in the East to seek a new life in the West. The return to his parental home causes Elias a sense of unease and disturbs the rigid order and complacency of his life.