This book entitled The Serial KIllet : The series compose of seven books series . It is merely about The Gemini Killer. That's what they're calling the person who's killed seven people in the past ten months, the person who kills only sets of twins. ------------------------------------------------------------------------------------------------------- Hughes took fifteen minutes to find a parking spot at the rehab clinic, the whiskey in the glove box calling to him all the way. He ran a hand through his midnight black hair, took a few deep breaths, and stepped out of his car. The Gemini Killer. That's what they're calling the person who's killed seven people in the past