Hidden by London’s wealth, energy and need for cheap labour, the city’s immigrant population is powerless, despised and often illegal. So when a young woman’s body is discovered on Hampstead Heath one cold morning, she could be anyone...Rich or poor, outsider or insider, five strangers are connected in undreamed-of ways as greed, courage, murder and kindness link their lives. Polly Noble, a human rights lawyer and single mother, knows more than most how easily people fall into the abyss of London’s underworld.