Millie's biological clock has been ticking for some time, and on the eve of her fortieth birthday the alarm bell starts ringing. She needs to have a baby and fast, but after months of fruitless trying, her husband Andrew is feeling like a walking sperm bank and their marriage is in crisis. Matters come to a head when Andrew's job relocates to London and Millie decides that if he won't stick around to get her pregnant, then she'll do it without him. Setting her sights on Spain, Millie embarks on a voyage of discovery ...