Both professionals. Both parents.. neither looking for love. As cardiac surgeon at St Benedict's, Nathan Carrington can deal brilliantly with the mechanics of the heart. With a failed marriage behind him, he's devoted to ensuring his young son's happiness. That's all he needs. Olivia Gilbert, St Benedict's paediatrician, had everything - wonderful husband, gorgeous kids, a job she loved. Then her world was turned upside-down. Now she has her children and her work. And that's all she needs. Then Nathan and Olivia meet. Suddenly they discover that single-parenthood just isn't enough.