How London’s grimiest locations became the stars of ‘Slow Horses’

How London’s grimiest locations became the stars of ‘Slow Horses’

By Francesca Street, CNN London (CNN) — Walking down a London street populated by chic wine bars, Michelin-starred restaurants and smart, Victorian buildings, a group of tourists suddenly halts in its tracks.They’re ignoring the appealing surroundings. Instead, they’re peering through an iron gate leading to a far-less-appealing alleyway where a row of garbage cans flanks