A respectable GP, Doctor Noonan is an anxious man who, like his daughter Nina, is prone to over-thinking. Susceptible to infatuation but desperately unsure what to do with it, Noonan’s mid-seventies affair with Geraldine Proudman was one of the few times he threw caution into the wind, and was guided by his heart not his head. When the affair ended, he retreated back to his solitary ways for many decades. But now, in his sixties, Noonan has been given a second chance by Geraldine, and is thrilled to find himself at the heart of the rambunctious Proudman clan. While he's delighted with his new life, and besotted with Geraldine, he does worry that their relationship is terribly imbalanced, and fears that she may only be together with him to stir Darcy's jealousy...