A documentary on Mary Bell, a girl who in 1968, aged 10, killed the first of two younger boys. Sereny has done startling work with hundreds of hours of interviews with Bell about her childhood, her extremely damaged mother, what happened to her during and after the trial, and what has become of her life up until the mid-1990s. This is a highly insightful look into the mind of a child whose existence was torn apart due to her mother’s and her own actions, and also into what I think is the kill-the-monster attitude that modern society carries, e.g. in the James Bulger case. This puts Deborah Spungen’s book on her daughter in the corner – and hopefully lets us forget it.