Set against a sweeping Cornish landscape, two couples discover that their toddlers were switched at birth in a hospital mix-up, and face a horrifying dilemma: do they keep the sons they have raised and loved, or reclaim their biological child?
Two unmarried women who have become pregnant by accident and are about to give birth meet in a hospital room: Janis, in her late-thirties, unrepentant and happy; Ana, a teenager, remorseful and frightened.