Documentary film about love, time and the astonishing ability of music to return people who were thought lost. Ted's wife Hilda doesn't know who he is any more: she no longer has the ability to recognise even those closest to her. Ted, a devoted husband of 50 years, calls her his 'lovely little stranger'. There's one thing she has not forgotten: the tune to Que Sera, Sera. Ted and Hilda are members of Singing for the Brain, a group of singers in Bristol made up of Alzheimer's sufferers and their spouses. As the group bursts into song, an extraordinary thing happens. People who may not even recognise their own partner find the words of a song learnt half a century earlier, and suddenly -- just for the time it takes to sing a few verses -- it is impossible to tell who is the Alzheimer's patient and who is the carer.