A decades-old crime. A torment not forgiven. Ice-cold revenge.

When a prolific international criminal takes one of Doctor Genevieve Lenard's friends hostage in his own flat, she is hard pushed to believe his motivation. Calling on her expertise as a nonverbal communications specialist, she sees the genuine fear and desperation behind this thief's blustering demand to help him stop the Collector.

For almost a year, the Collector has evaded Genevieve and her team, leaving behind a trail of stolen artworks, burned-down museums and blown-up galleries. And innocent victims.

Grudgingly cooperating with this thief and his associates, Genevieve and her team track the Collector to the cobbled alleyways of Lisbon, Portugal, where they have only one chance to stop this merciless killer from exacting revenge that took decades to plan—an action that would have an irreversible political and economic impact on a global scale.