Louis Theroux: Selling Sex

With online booking, reviews, and lashings of social-media interaction so customers can try before they buy, the sex trade is more accessible than ever. New technologies help sex workers to vet their clients in safety. But at what emotional cost? Should sex ever be as easy to book as an Uber? Awkwardly charming investigator Louis Theroux passes no judgement - but his eyebrows do the talking.