Running with the Krays lifts the liid off London's underworld, from street gangs and race-course con games to protection rackets, beatings, maimings, intimidation and even murders. It reveals elements of police corruption and provides insights into the interdependence of both sides of the underworld scene - a compelling and gruesome account of how the other half of London lives.

Born in wartime London's east end, Billy Webb grew up in the violence of air-raids and street warfare. His first weapon was a knuckleduster which he had made to measure for the price of five cigarettes when he was 11. When he first met the Krays they were scraping a living by doorknocking for old clothes to be sold in street markets. For three years he and the twins were on the run together as army deserters, and over the course of time, he was a friend, ally and foe of the Krays in their violent rise to fame.