It's a golden age for documentaries - but at what price for people whose lives are laid bare? | Camilla Hall

The Staircase gripped millions of viewers, but it wasn't until I met Margie Ratliff that I began to question the human toll When I watched The Staircase, I was transfixed. The 2004 documentary series - rereleased on Netflix in 2018 - tells the story of US author Michael Peterson, who was charged with the murder of his wife. I was glued to my laptop, Googling the myriad of popular theories: was she, in fact, killed by an owl? Was the murder weapon a discarded blow poke? I found myself playing det...