Since its first episode back in 2010, the hit BBC show has established itself as one of the most successful reinventions of this classic fictional character. This is a resolutely modern, London-based adaptation: gone are Conan Doyle’s smog and carriages; in their place are laptops, mobile phones and Twitter hashtags. Our crime-solving hero is presented as ‘a new sleuth for the 21st century’, supplementing his trademark methods of logical deduction with cutting-edge scientific methods and the latest technology. Sherlock is brilliant, fast, dynamic, dapper and funny. Yet he’s also arrogant, odd, obsessive and, as journalist Amanda Mitchison puts it, ‘slightly Aspergers-ish’. He is able to make us laugh, but he’s also part of a world that is dark and frightening.