This book is an adult mystery. The plot involves cyberterrorism from extremists bent on disrupting the infrastructure of the U.S. and other countries through hacking computer code. When bodies start to drop, no one is safe. Jane Anders has a husband who is murdered after he designed the technical center where employees are trained in software development. Some of his colleagues already know what the technical center is for. People are murdered to keep the coding secret and the author is adept at describing how difficult it might be to catch the consortium of hackers behind all of this. A new love affair turns up to help solve all of the crimes along with the FBI. There is romance intertwined with difficult police work to catch the terrorists and the author stays one step ahead of the reader until the very end.