Some are born to be great mums, some achieve greatness, and some have motherhood thrust upon them.

Ambitious, independent and happily child-free, Anna Harding isn't worried when her best friend, Helena, unexpectedly falls pregnant. After all, she's living the expat high life in London with her boyfriend, Finn, while Helena is on the other side of the world in sleepy Adelaide. Anna's not even fazed when Helena asks her to be the baby's godmother. How hard can it be from 15,000km away?

But when a depressed Helena turns up on Anna's doorstep, begging her to look after baby Ivy while she escapes to Scotland to get her head together, the dirty nappies really hit the fan. How can newspaper gossip columnist Anna carry on her A-list lifestyle with a screaming kid in tow - especially when her job is at risk and Finn ups and moves to Ireland in pursuit of his own dream career?

With Helena swept up in her new life in Scotland, Anna fears she'll be left holding the baby for good - until her grumpy neighbour, Luke, unexpectedly emerges as her go-to infant expert. Maybe pseudo-parenthood isn't so bad after all...