In a moment of desolation on a windswept beach, Garrett bottles his words of undying love for a lost woman, and throws them to the sea.

My dearest Catherine, I miss you, my darling, as I always do, but today is particularly hard because the ocean has been singing to me, and the song is that of our life together...

But the bottle is picked up by Theresa, a mother with a shattered past, who feels unaccountably drawn to this lonely man. Who are this couple? What is their story? Beginning a search that will take her to a sunlit coastal town and an unexpected confrontation, it is a tale that resonates with everlasting love and the enduring promise of redemption.