The central character is Yvonne Carmichael, a law-abiding married woman who raises two children while managing to balance her family responsibilities with her passion for scientific research. Yvonne's life could be considered settled, but suddenly everything changes and turns into utter chaos after she meets the charming stranger, Mark Costley. Romantic relations begin between the main character and the charming man from Westminster, which could destroy Yvonne's entire life.