A string of deaths in laboratories around the world has the scientific community on edge -- and the FBI on high alert. To the FBI, the circumstances surrounding the scientists' deaths spell the work of an unusually skilled serial poisoner, and they have zeroed in on a single suspect: the brilliant, beautiful Dr. Christine Palmer. A world-renowned toxicologist and leader of numerous international research teams, Palmer is one of only a handful of scientists with highly classified knowledge of the deadliest experimental neurotoxins and their antidotes.
When a molecular toxicologist is poisoned while working at a top-secret research facility outside Santa Fe, Dr. Sylvia Strange and counterterrorism expert Edmond Sweetheart are recruited to assemble a psychological profile of Palmer in an effort to link her to the crimes. But as Sylvia's investigation of Palmer's charismatic persona draws her ever more strongly into the scientist's orbit, hunter and hunted become perilously intertwined. And when Sylvia discovers that her partner may be withholding crucial information, she no longer knows who can be trusted: is the killer friend or foe?
Sylvia will risk everything she holds dear, only to learn that there is no safe haven from a voyeuristic killer whose weapon of choice may go undetected in the food you eat, the clothes you wear, or the air you breathe.