Anna Grace is trapped in an abusive marriage with a man she does not love, forced to live on a Maryland plantation far from her Philadelphia home. An innocent cobalt blue medicine bottle becomes her way to freedom and love.

Beth flees an abusive relationship, making a fresh start on the coast of the Chesapeake. She discovers a love for sea glass, finding shards along the bay shorelines. With the discovery, she'll find a piece of a rare cobalt blue poison bottle that will lead her to unexpected love.

Both women will find their courage and the love they deserve, both tied to the simple cobalt blue bottle through time and tides.