Toronto, Canada, 1926

Best friends Lily di Marco and Mae Thebault were once inseparable. They lived under the same roof and cared for each other's children. But with mouths to feeds and demanding husbands to keep happy, both women are forced into terrible decisions as the Great Depression tightens its grip.

When lawyer Charles Vance Miller's will promises a handsome sum of money to the woman who can produce the most babies in the next ten years, it is initially dismissed as a vanity project. But as the Great Depression worsens, and times get increasingly tough across the world, for the most desperate in society this contest known as The Great Stork Derby suddenly seems like a way out.

Ten years later, Lily and Mae couldn't be further apart. And as The Great Stork Derby continues to make headlines, for all the wrong reasons, both these women must face up to their part in it, and the consequences...