Bright, young, and ambitious, Quinn Barry desperately wants to be an FBI agent, even as she programs databases in the basement of the J. Edgar Hoover Building. But Quinn's career -- and her life -- are about to change wildly. Testing a new program, Quinn's computer savvy turns up a mysterious DNA link among five gruesome murders. A link that the old FBI system had been carefully programmed to miss. A link that nearly costs Quinn her job, and soon, her life...Pitted against a conspiracy of unimaginable proportions, Quinn will match wits against powerful government forces that will use any means necessary to keep their dirty secrets hidden -- secrets that will land her in the clutches of a sadistic, brilliant madman who holds the key to it all.