Hi, my Mum has Alzheimers/dementia and my Dad is her only carer. I live fairly close by and visit and telephone frequently. These past ten days my Mum has been convinced that my Dad is missing and that the person caring for her is not my Dad, her husband but is her own father. She is 89 and my father is 83! She is getting very distressed because no one will call the police to report him missing. We have tried reasoning with her but to no avail. We have tried placating her with,'we know he is alright' but again to no avail. My father is reluctant to get the doctor involved in case it leads to her being hospitalised for any reason. Any ideas?