Marian's biological clock is ticking. She has a dream job as the producer of a hugely successful TV show, a stunning Manhattan apartment and a wonderful relationship with the man she loves. But she wants a baby - and she also has a secret. And when that secret turns up on her doorstep after 18 years, her picture perfect existence begins to take on a life of its own.

Kirby is adopted. She loves her parents and her sister, but she's never really felt she fitted in. And now she's 18 there's nothing to stop her finding her birth mother. But navigating her way, alone, to New York is only the start - and as Marian soon discovers, giving birth is the easy part.