Two women have a chance encounter in a supermarket in an affluent Sydney suburb. They are the same age, both heavily pregnant and due at the same time. Meghan (Jessica De Gouw) is a glamorous online 'influencer' on the rise with an ambitious television sports reporter husband Jack (Michael Dorman). Agatha (Laura Carmichael) works in the supermarket as a shelf stacker.

Although they live near each other, the two women’s lives could not be more different... Agatha is a loner, barely subsisting above the poverty line. She’s ecstatic to be pregnant, pinning all her hopes and dreams on this much longed-for ‘miracle baby’. Yet the father of her child, Hayden (Michael Sheasby), a sailor on active duty, remains oblivious to her condition.

Meghan is a sophisticated mother-of-two who uses her website to reframe her imperfect life into a glossier, more aspirational existence. Despite posting enthusiastically about her pregnancy to her avid followers, including Agatha, behind closed doors this third baby is putting pressure on a strained marriage.

Both women have secrets. And both will risk everything to conceal the truth. But their worlds are about to collide in one shocking act that cannot be undone.