I saw this late last night on BBC 4, and am so glad that I did.
Undercover OAP: The Mole Agenct is a Storyville documentary about an 83-year-old widower hired to go undercover and investigate a case of potential abuse in a Chilean nursing home. His client, the concerned daughter of a resident, suspects her mother is being abused and hires him to find out what is really happening.
From what I could see while aspects of the care home were not perfect, neither was it the hell hole I'd been expecting when I first started to watch the programme. Indeed there were aspects of the home that were very heart warming and inspiring, including the close involvement of the residents with the funeral of one of the residents that had died - something I've never come across with care homes in the UK.
It turns out that the real abuse was the abandonment of the residents by their families and their resultant isolation and profound lonlieness. This left the widower concerned to conclude that his client had hired him out of a sense of guilt for abandoning her mother.
If you have not already seen it, I highly recommend it. Yes, in many ways it is absolutely heart breaking, though there are some lovely little touches of humour as well.