All the Rage

A teenage girl is found wandering the outskirts of Oxford, dazed and distressed. The story she tells is terrifying. Grabbed off the street, a plastic bag pulled over her face, then driven to an isolated location where she was subjected to what sounds like an assault. Yet she refuses to press charges.
DI Fawley investigates, but there's little he can do without the girl's co-operation. Is she hiding something, and if so, what? And why does Fawley keep getting the feeling he's seen a case like this before?