Season 4 finds the unlikely detective duo in Vienna in 1909, where the double murder of a senior public official and an arms dealer in police custody has shaken the city to its core.
Stayin' Alive: By the summer of 1978, disco appeared untouchable, but mass marketing and rampant commercialism were beginning to turn the tide; bad disco singles and the perceived elitism of clubs like Studio 54 fuelled a surge in anti-disco feeling.