It starts with the death of a teenage runaway, killed when she leaps from a motorway bridge into the speeding traffic below. The girl’s identity remains a mystery – until the discovery of the dead girl’s details matches the profiles of three other girls; all recently have been reported missing. A further shocking discovery causes the whole file to be handed over to Greater Manchester Police’s Counter Terrorism Unit, with leading detective constable Iona Khan in charge.

It starts with the death of a teenage runaway, killed when she leaps from a motorway bridge into the speeding traffic below. The girl’s identity remains a mystery – until the discovery of the dead girl’s details matches the profiles of three other girls; all recently have been reported missing. A further shocking discovery causes the whole file to be handed over to Greater Manchester Police’s Counter Terrorism Unit, with leading detective constable Iona Khan in charge.