An uncompromising look at the lives of sex workers in an area of Leeds where, if you're buying or selling sex, you won’t get arrested. The red light zone was introduced to try and make the lives of the women who work there safer. We meet the sisters who work together on the streets, as they talk candidly about how every night they put their lives at risk. And as one of them describes how they were brutally attacked, we ask - is this pioneering experiment working?