Kendra Michaels was instrumental in bringing serial killer Eric Colby to justice. And yet, despite his apparent execution, Kendra is convinced that Colby is still alive. The problem is that she can't prove it. Even her razor-sharp powers of observation --- developed to an amazing capacity during the 20 years she spent blind and now in constant demand by law enforcement agencies --- have gotten her nowhere. But then a reporter who very publicly humiliated Kendra is murdered. Visiting the crime scene in search of anything that might link the brutal homicide to Colby, Kendra instead finds evidence that points to her.
Before the experimental surgery that gave her sight, Kendra Michaels developed her other senses to an amazing capacity. Law enforcement agencies clamor for her powers of perception and observation. When Kendra realizes that an apparent traffic accident on San Diego's historic Cabrillo Bridge is in fact a murder scene, she rushes to alert the police. As the body count rises, a gruesome pattern emerges. Someone is killing people in ways that mirror Kendra's most notorious cases…and he is not working alone.
The FBI doesn’t usually consult with music therapists, but Kendra Michael has perfected the art of picking up the most subtle audio, olfactory and tactile cues from the world around her. Former FBI agent Adam Kyle is a notorious master manipulator, skillfully handing criminals and colleagues alike. But now he needs Kendra’s help to find her ex, who may have run directly into the path of a serial killer.