I found this documentary fairly interesting.
There is an elderly woman who lives down the road from my sister-in-law. Her husband died a few years ago, but we've noticed that she has a compulsive disorder and that she is a hoarder (example: her house is stuffed with so much stuff that she lives in her car, and her car too is stuffed as full as her house). It's truly sad. We made an inquiry on her behalf, with a local social worker who works with the elderly. She's probably not ever going to be healed of her secretive shopping and hoarding disorder, but I came across this the other night and watched it, hoping to better understand the condition (obsessive/compulsive disorders).