Nothing prepared him for the trauma of having someone he's known his entire life, staring blankly at him every day.In March 2017, less than three years after she was diagnosed with dementia, Roger became a stranger to his mother as his existence was erased from her mind. Watching her descend into an abyss of unfathomable depths, he judged himself guilty — his most heinous crime was his failure to heed the warning signs of dementia early enough — and completely helpless. As he grappled with the biggest loss in his life and fumbled with his new dual realities — one as his mother’s son and the other as caregiver to her “body double’, he made many important discoveries including a language of love and learned that she had always known about his uncomfortable secret.'Sundays are for mummy' is a personal story about dementia, love, guilt, hope, gains and losses, told through the lens of a son’s desperate struggle to hold on to his mother. While offering perspectives on coping with the disease, it is also a wake-up call to cherish time with our parents and anyone we love, while we still can.