The list he left had just one item on it. Or, at least, it did at first... Mabel Beaumont's husband Arthur loved lists. He'd leave them for her everywhere. 'Remember: eggs, butter, sugar'. 'I love you: today, tomorrow, always'. But now Arthur is gone. He died: softly, gently, not making a fuss. But he's still left her a list. This one has just one item on it though: 'Find D'. Mabel feels sure she knows what it means. She must track down her best friend Dot, who she hasn't seen since the fateful day she left more than sixty years ago. It seems impossible. She doesn't even know if Dot's still alive. Also, every person Mabel talks to seems to need help first, with missing husbands, daughters, parents. Mabel finds her list is just getting longer, and she's still no closer to finding Dot. What she doesn't know is that her list isn't just about finding her old friend. And that if she can admit the secrets of the past, maybe she could even find happiness again...