When Tahoe Detective Owen McKenna gets a call from a woman who's afraid for her life, it sounds like she is excessively paranoid. McKenna investigates and discovers that two other people have already died. He believes the killer is after something worth millions, a precious artifact that dates back to Renaissance Italy. When McKenna finds a connection between the victims and a famous retired pro football tackle named Adam Simms, he worries that Simms will be the next victim. Simms seems gentle as a teddy bear. But decades of football gave Simms Traumatic Brain Injury, causing loss of memory and worse. When Simms can't remember details of his relationship to the other victims, McKenna begins to wonder if it's because Simms is suffering dementia or if he's a diabolical fake. As McKenna pursues the case, he will need every bit of strength and skill, for the murderer is determined to kill McKenna in the most vicious way imaginable...