1918 … When Londoner, Rose Porter, arrives on the shores of Sydney with little more than her suitcase, she is forced to take a job as a parlourmaid at the mysterious North Head Quarantine Station. It’s a place of turmoil, segregated classes and strict rules concerning employee fraternisation.But as Rose soon learns, some rules were made to be broken.2019 … Over a century later, Emma Wilcott lives a secluded life in Sydney. Still reeling from a devastating loss, her one-hundred-year-old grandmother, Gwendoline, is all she has left. Suffering the early stages of dementia, Gwendoline’s long-term memories take her wandering at night and Emma realises she is searching for something or someone from her past.

Emma’s investigation leads her to the Quarantine Station where she meets Matt, the station carpenter, and together they begin to unravel a mystery so compelling it has the power to change lives, the power to change everything Emma ever knew about herself.