Washington D.C. police stumble upon a gruesome murder scene involving a girl who was slowly starved to death while held captive in a cage. When the victim is identified as the daughter of a high profile senator, FBI neuroscientist Sayer Altair is thrust into the spotlight. Now another girl has been taken and is teetering on the brink of death. Sayer races to save the second victim, but soon realizes that they are hunting a killer with a dangerous obsession-- a killer who is closer than she thought. -- adapted from jacket.