Cavanaugh Street is a mostly quiet Armenian neighborhood in downtown Philadelphia where nearly everyone knows everyone else and certainly knows their business. But that quiet is destroyed when the Armenian Orthodox church is destroyed by a bomb and its cleric, Father Tibor Kasparian, is hospitalized as a result. What would normally be a front-page event, however, is overshadowed by another event across town-when Philadelphia Main Line society is shocked by the murder of one of their own. Anthony van Wyck Ross-the head of one of the major investment banks and a cornerstone of Main Line society-is murdered at the Around the World Harvest Ball being hosted at his mansion. Now former head of the FBI's Behavioral Sciences Unit Gregor Demarkian must see through the conspiratorial haze-a task that takes on personal resonance since Gregor's girlfriend, Bennis Hannaford, serves as Vice Chairman of the Ball. Soon, Gregor finds himself caught up in a spiral of fear and murder that takes him to the very edge of evil.