Joseph and Evelyn's New England beach homes have been side by side for generations. And in the summer of 1941, on the shores where they were raised, these two childhood friends fell in love. Now, more than sixty years later, with a lifetime between them, Joseph and Evelyn gather their three grown children to share the staggering news: She has received a tragic diagnosis; he cannot live without her. So in one year's time, they will end their lives on their own terms. As the couple comes to grips with their fate, they retrace their past-the joys and regrets, the laughter and the sorrow, that brought them to this moment. They embark on a journey to create new memories to cherish, to live out their greatest dreams, and to comfort and connect with each of their children before they're gone. But as their final days draw closer, they must confront the stark reality of what they are about to do, and make peace with the legacy they will leave behind for their family.