Sophie Harrington doesn't hesitate to leap to the aid of Gabriel York when she sees him lying collapsed on his hall floor. Having shinned up a drainpipe to come to his rescue and applied the kiss of life, she discovers he's very much alive and not particularly grateful. Undeterred, and despite her own desperate problems, she does not give up on him and when she becomes homeless and with Christmas coming, Gabriel reluctantly takes her - and even less willingly - her cat, in as a temporary lodger in his exclusive London home. But before long he realises Sophie isn't just for Christmas, but for life!