Katherine is a woman full of obsessions. Everything clean, everything perfect, all of the time. After seven years of trying – and failing – to conceive, she finally gives birth to Rose, her IVF miracle child. But, her pale skin not matching Katherine’s own, she’s fearful Rose isn’t really her daughter.

Tess never got her happy ending. She took on IVF alongside Katherine and a group of hopeful mothers, but hasn’t been one of the lucky ones. After a series of desperate choices, she’s divorced, broke, and stuck in a job beneath her skills.

When Rose is ten months old, they both get a call from the fertility clinic. The women’s eggs were switched. One woman has been raising the wrong daughter, while the other has spent a year grieving a child that wasn’t hers.

Katherine’s perfect life beings to crumble around her, but for Tess it’s the glimmer of hope she needs to get her life back on track. It’ll take a custody battle like no other to decide who really deserves to be Rose’s mother – a battle that will push both women to the brink.