A Merciless killer with a unique weapon is ready to strike. Electricity is as it is vital, and it only takes one spark of genius to generate panic and death. In the meantime, one of the few criminals to have ever slipped Lincoln Rhyme's net the assassin known as the watchmaker has set hi murderous sights on innocent ictims, hose identity is yet unknown. Rhyme must juggle two investigations as they hurtle toward their deadly outcomes.
