Rebellious and unmanageable, Rosie is forced to move to the countryside with her family to escape the temptations of London life. But her propensity for trouble is not confined to the city, and Rosie is soon kidnapped by child traffickers and taken back to London, along with many other children that have been shipped into the country from abroad. Rosie faces prostitution, the plight of others much worse off than her, as well as her own demons, and it will take the determination and cunning of her brother Ted and student journalist Martha to find her before it's too late.