From Publishers Weekly
Those who prefer thrillers packed with psychological complexity, truly demented characters and nonstop, unexpected plot twists will enjoy this terrifying treat from Prescott (Next Victim, etc.). Brilliant psychiatrist Robin Cameron seems on the verge of success with an experimental program that uses a magnetic helmet to trigger, then modify, old angers that cause criminal behavior. Atypical serial killer Justin Gray initially seems a promising subject for rehab since his murders of high school girls involved mixed motivation-she didn't torture them or sexually molest them, and he has to drink to deal with death. Indeed, Gray seems almost cuddly compared to traumatized LAPD Sergeant Alan Brand, who unwittingly admits to a cold-blooded killing while under Robin's care. When Gray escapes and Robin's teenaged daughter is kidnapped, Robin doesn't know who to accuse. The possibly rehabbed killer? The supposed good cop Alan? Or is there a bigger and more sinister conspiracy afoot? The suspense doesn't let up until the last page, and even then, readers will continue to speculate, as Robin does, whether a killer's yearning for blood is learned or innate. Without a doubt, this dark, compulsive read messes with your mind and makes you love it.
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