Meet Tony Hill's most twisted adversary - a killer with a shopping list of victims, a killer unmoved by youth and innocence, a killer driven by the most perverted of desires. The murder and mutilation of teenager Jennifer Maidment is horrific enough on its own.

But it's not long before Tony realises it's just the start of a brutal and ruthless campaign that's targeting an apparently unconnected group of young people. Struggling with the newly awakened ghosts of his own past and desperate for distraction in his work, Tony battles to find the answers that will give him personal and professional satisfaction in his most testing investigation yet...