Mistress

James Patterson's scariest, sexiest stand-alone thriller since The Quickie.
Ben isn't like most people. Unable to control his racing thoughts, he's a man consumed by his obsessions: movies, motorcycles, presidential trivia-and Diana Hotchkiss, a beautiful woman Ben knows he can never have. When Diana is found dead outside her apartment, Ben's infatuation drives him on a hunt to find out what happened to the love of his life. Ben soon discovers that the woman he pined for was hiding a shocking double life. And now someone is out to stop Ben from uncovering the truth about Diana's illicit affairs. In his most heart-pumping thriller yet, James Patterson plunges us into the depths of a mind tortured by paranoia and obsession, on an action-packed chase through a world of danger and deceit.
"Let’s see what she has in her medicine cabinet. I mean, as long as I’m here. Careful, though. Before you turn on the light, close the bathroom door. The rest of her apartment is dark. Best to keep it that way. What do we have here...lotions, creams, moisturizers, lip balm, ibuprofen. What about the meds? Amoxicillin for a sinus infection... lorazepam for anxiety... Diana has anxiety? What the heck does she have to be anxious about? She’s the most put-together woman I know."