When David Sieveking left home to study filmmaking, he left behind parents who were active, intelligent and involved. Several years later, on a visit home for Christmas, he noticed that his once spirited mother, Gretal, had become somewhat hesitant, and overly forgetful. Shortly after that came the diagnosis of Alzheimer’s disease – a particularly aggressive case that, over the next four years left Gretal unable to remember many things, unable to care for herself, and unable to be left alone.