Holly and Gerry had the perfect life. Happily married, living in Dublin close to their friends and family, and with a brilliant social life, they had the world at their feet. Or so they thought. When Gerry dies, Holly is devastated. On the eve of her 30th birthday, the man who was her lover, her best friend, her rock, has left her. But Gerry promised he'd always be there for Holly. And he is: his last bequest to her is The List, a bundle of notes which form a monthly mission for Holly to get her life back on track.
As the notes are gradually opened, and as the year unfolds, Holly is both cheered up and challenged. The man who knows Holly better than anyone sets out to teach her that life goes on. With some help from her friends, and her noisy and loving family, Holly finds herself laughing, crying, singing, dancing - and being braver than ever before.
Life is for living, she realises - but it always helps if there's an angel watching over you.