Edinburgh is often described as the 'Athens of the North' but its most famous detective Inspector Rebus views Scotland's capital in quite a different light - it is a crime scene waiting to happen. As his creator Ian Rankin prepares to write the last ever Rebus case, the award-winning author re-visits the key locations from the books. From the city's 'pubic triangle' and the home of Scotland's most infamous madam to a police station where he was interviewed about a real murder, Rankin explores the hidden Edinburgh into which tourists never venture.