Panorama reveals the appalling treatment of an elderly care home resident with dementia, captured on film after a concerned relative hid a secret camera. The abuse - in a care home passed as "excellent" by the national regulator, the Care Quality Commission - has led to five care workers being sacked, with one pleading guilty to assault. It was recorded by a secret camera placed in the elderly woman's bedroom by her daughter, who speaks for the first time about what happened. Fiona Phillips, whose parents suffered from dementia and whose mother died in a care home, investigates whether the regulator and care home provider did enough to prevent such abuse and asks whether the system of elderly care itself can be trusted.