20 years after the disappearance of his mother from her post-separation home, Charlie Deravin has been suspended from his job as a city police officer and is back living in the family shack in a beachside town on the Mornington Peninsula, about an hour’s drive from Melbourne and within a walk-along-the-beach distance from where Rose Deravin disappeared.

As Charlie begins picking up the threads of his mother’s unsolved case, he tries to track down the creepy guy, Shane Lambert - a former foster child - who was once a tenant in his mother’s house. Charlie suspects Lambert killed Rose Deravin, although his older brother, Liam—and many others in the beach community—think it was her cop husband, Rhys Deravin.