Sigmund Freud was dubbed the "Father of psychoanalysis." And certainly no other individual exploration of the human condition has had such a lasting and profound effect on the understanding of the psyche. His work changed the climate and the context in which we understand our lives, as well as the landscape of the inner workings of the human mind. The program begins in Vienna. Sigmund Freud arrived here in 1860 aged 4 and for the next 80 years this was the context for his radical and often disturbing insights into the human psyche: insights that would wipe away the horizon of all that had come before, and re-envisage the landscape of the mind. Host Bettany Hughes travels to Vienna to discover that when Freud first came here, this was a city of political and economic turbulence. It was one of the capitals of the Austro Hungarian Empire, and its population of one and half million, half were immigrants. Germans, Poles, Slovaks, Serbs, Italians, and Hungarians filled the streets. And it was in this atmosphere riven with inequalities, that the ideas that would become Freud's obsession were forged.