'He was dismayed how readily he took to lying. He'd always thought of it as a decisive abandonment of the truth. Instead, he realised, it was simply a matter of one word slipping into the place of another.'Dr Quinn Davidson and his wife Marianna have endured years of unsuccessful IVF and several miscarriages, and Quinn can't face another painful attempt to conceive. Marianna is desperate to be a mother and their marriage is feeling the strain. At a small-town practice a few hours from their home, Quinn meets Rachel, the daughter of one of his patients. Drawn to each other, it's not long before they find themselves in a passionate affair and Quinn realises he must choose between the two women. Then Marianna announces a surprise natural conception, news that will change the course of all their lives.