Inside Grendon Apu (BBC Two documentary, 1992)

The Grendon Acute Psychiatric Unit imprisons the most difficult group of "patients' in the country - men convicted of murder, multiple rape, arson and child molesting. Most new inmates arriving at Grendon suffer severe shock when confronted by the open cell doors policy and "kind and caring screws" - but that's part of the treatment. Producer Paul Pierrot Editor Jeremy Gibson