"The mean streets of South London are a dangerous place for a young girl to walk at night . . . "A notorious council estate in South London has hit the headlines again. A punter has been stabbed to death while soliciting the services of an underage prostitute. DI Georgia Johnston and her team investigate, but Georgia is dismayed when the DCI calls in gang expert DI Dawes to help, and even more so when he suggests that her partner DS Stephanie Green s teenage daughter Lucy go undercover as part of the investigation. But headstrong Lucy has her own ideas, leading her and the rest of the team into grave danger . . ."