S1, E2: Edinburgh, Scotland is a thriving metropolis in the heart of the United Kingdom. But take a look into its past, and you'll find it has led a double life - the sophisticated and educated surface city blossomed above while a darker, seedy world expanded below. From plague victims getting buried alive under the streets to body snatchers, illegal distilleries and castle dungeons, Edinburgh's underground has many stories to tell. Host Eric Geller investigates these stories, deciphering fact from fiction, while uncovering the engineering marvel of Edinburgh's underground - created when the city actually changed its street level. We're peeling back the layers of time on Cities of the Underworld: Scotland's Sin City.