In amongst the bright lights and bumper cars, Nick Davies noticed two boys, no more than twelve years old, oddly detached from the fun of the scene. Davies discovered they were part of a network of children selling themselves on the streets of the city, running a nightly gauntlet of dangers: pimps, punters, the Vice Squad, disease, drugs. This propelled Davies into a journey of discovery through the slums and ghettoes of our cities. He found himself in crack houses and brothels, he befriended street gangs and drug dealers.