1813. Meg Marsh will do anything to keep a roof over her family's head - even getting involved in a dangerous smuggling operation. When Meg catches the eye of a dashing gentleman above her station she can't help but start dreaming of a life away from the shingle and boats of Castle Bay. Blinded by flattery and coin Meg can't see the danger on the horizon. 1913. Carrie Marsh lives a quiet life as a teacher until she turns the head of Oscar the charming son of the wealthiest family in Castle Bay. The two spend a carefree summer in the secret garden rumoured to be haunted by Carrie's murdered ancestor. But when they accidentally stumble upon human bones Carrie is forced to ask herself whether she really knows Oscar at all - and whether she is doomed to follow in her ancestor's footsteps.