Catriona and James are desperate for children, so embark on an IVF program. Four embryos are created, and by the third treatment Catriona is pregnant. They decide to adopt out the fourth embryo anonymously.

A second couple, Diana and Liam, are on a waiting list to adopt an embryo. Sooner than expected, the call comes through that there is one available.

After a difficult pregnancy, Catriona gives birth to Sebastian. But severe post-natal depression affects her badly, and quickly turns into full-blown psychosis. For her own protection and the baby’s, she is admitted to a psychiatric institution, and stays there for a month. When she comes home, she again struggles to bond with her baby, but she puts it out of her mind.Gradually life settles down and Catriona returns to work, while James stays at home.

Meanwhile, Diana has given birth to a beautiful little boy, Noah. But when he is two months old, Diana and Liam face every parent’s worst nightmare. Noah is kidnapped. For two years, they search for him, without result.

Where is Noah?

This gripping, emotional thriller binds together the stories of Catriona and Diana and will leave you on the edge of your seat.

What if your child belonged to someone else?