When Julia Collins reluctantly sets foot on Sister Island, compelled by her wealthy grandmother's will, she is intent on claiming her inheritance and moving on. But when she experiences the peaceful, faith-filled island life, and connects with the handsome lightkeeper, William, Julia finds herself confronting her open wounds from her parents' deaths.

William Dodge, lightkeeper of Sister Island, harbors a heart hardened by a past betrayal. Between that and his chronic pleurisy, he wants nothing to do with love. But when Julia arrives on the island bursting with vitality and unconventional notions, William's world is turned upside down. As she chips away at the walls William has built for himself, he finds his reluctance waning.

But just as love begins to blossom between them, Julia is faced with a tempting proposal from a prominent Brockville family. Will she succumb to societal expectations or choose the richness of her island life and the love of the steadfast lightkeeper?