Sophie discovers a complex web of long-held family secrets spanning three generations of women on Scribbly Gum Island, including a disturbing incident that hangs over the complicated Doughty family, which is central to the story's mystery and drama.

The island is famous for the disappearance of a couple decades ago, which left a baby abandoned. This true crime mystery has made the island a destination for tourists and is a key element Sophie investigates, uncovering deeper secrets tied to the family and the island's history.

Initially unwelcome because she inherits a house expected to remain in the family, Sophie tries to find her place among the Doughtys. She becomes determined to solve the island’s mysteries and navigate the family drama, potentially forming a new family bond despite resistance from other members.

The story explores themes such as longing for motherhood, postpartum depression, and dysfunctional mother-daughter relationships, with each character navigating their own emotional challenges within the multi-generational family drama.

Enigma is the grown-up abandoned baby from the island’s famous mystery. She uses her notoriety to conduct guided tours for true crime tourists on Scribbly Gum Island. Her past holds dark secrets that, when revealed, have the potential to change everything for the family and the island’s story.