Killing Me Softly, by Nicci French

Alice Loundon's life couldn't be any more fulfilling. She is a successful career woman and is engaged to a wonderful man named Jake. Even though her personal life is in order, she feels that there is something, that there is a void that needs to be filled. Her ordered life lacks excitement. But things change as soon as she meets a handsome and mysterious stranger named Adam. After a night of passionate lovemaking with Adam, she dumps her fiancé and marries Adam. Little does Alice know that she has embarked on a roller coaster ride of obsession and malice. Killing Me Softly has a Fatal Attraction quality to it that will keep you turning the pages. There are many thrillers out there -- especially thrillers about obsession -- but Nicci French's language is original.