Are Angels dangerous? Detective Jennia Bennett never imagined that the sophisticated holographic simulations could possibly harm anyone. But now, as she delves deeper into her very first murder investigation, she is very much afraid that the answer to that question may be "Yes." A researcher claimed he found a fundamental flaw in the Angels, one that leads inevitably to madness and chaos. Now the man is dead, and his proof is missing. If he was right, millions of citizens who depend on the "sims" to keep the country running smoothly may be at risk. But powerful figures rely on the success of the Angel program to support their own ambitions, and they pressure Jen to close the case quickly. Jen enlists the help of her best friend Elise to locate the original Angel, Adam, who may hold the key to understanding the threat posed by the Angels. But Jen soon discovers that both Adam and Elise share a unique bond with the designer of the Angels. Dr. Arno Marchand is fiercely protective of his creations and denies that the Angels are flawed, but Jen senses that the reclusive scientist may not be quite what he appears. As the list of suspects grows, Jen must hurry to untangle the threads and uncover the truth about the Angels, before she herself becomes the killer's next victim.