A Chicago detective travels to Scotland after an emerging serial killer’s crimes match those that he investigated five years earlier, one of which was the crime scene of his murdered girlfriend.

Damaged

Jack Docherty brings together a jam-packed cast of comedians, actors and famous faces for a riotous celebration of Scotland's most valuable export – its sense of humour. Scotland is a small nation with a big funny bone. It's known the world over for self-deprecation, quick-witted patter and deadpan asides. But what makes it so funny? To find out the answer, this programme delves deep into the BBC Scotland archives to find a century’s worth of classic characters, catchphrases and comedy clips.