For eight long years, Detective Inspector Lorne Simpkins has tracked the vicious criminal known as The Unicorn. But the killer has frustrated MI6 at every turn and remained successful at Impeding Justice.
When Lorne is targeted in a trap that results in the death of her partner, the tragedy shakes her confidence to the core. Before she has time to recoup, her teenage daughter is kidnapped. More than Lorne's professional reputation rests on her bringing The Unicorn to justice.