Weber embarks on a personal journey into the past to uncover the life of her great-grandfather Florens Christian Rang (1864-1924), whom she nicknames Sanderling after the darting shorebird. A Protestant pastor in Prussion-ruled Poland, Rang served a church whose mission to 'Germanise' the local population would later be echoed in the murderous ambitions of the Third Reich. After leaving the church, Sanderling moved in the circles of Walter Benjamin, Hugo von Hofmannsthal, and Martin Buber. He joined a group of writers, artists, and philosophers who dreamed of a utopian society, even as one of his sons, Weber's grandfather, would go on to become a Nazi. By deciphering his letters and diaries, and travelling in his footsteps to Poland, Weber traces the contradiction and crises, the reckonings and departures of complex legacy. With literary and philosophical references including Sontag, Sebald and Nietzsche, Weber combines her family history with a broader examination of ethics and morality to create a travel diary through time, reaching back to understand her ancestors.