FBI Special Agent Patrick Bowers's cutting-edge geospatial investigative techniques and impeccable logic have helped him track some of the country's most grisly killers. But those skills are about to be pushed to the limit. A young woman is found brutally murdered in Washington DC as her killers conduct a spree of perfect crimes in the Northeast. With nothing to link the crimes to each other, Agent Bowers faces his most difficult case yet--even as his personal life begins to crumble around him.