In 1979 a play was produced, with script by Barnes with David Edgar.
Mary Barnes was an English artist and writer who suffered from schizophrenia, but later recovered. Mary Barnes died in 2001. This 1979 work by David Edgar chronicles the six-year journey through madness of Mary Barnes. Set in 1960s London and based on the personal accounts of Barnes (Laurie O’Brien) and therapist Joseph Berke, the work follows the middle-aged former nurse through her years as a resident of Kingsley Hall, a controversial residence/therapy facility headed by the even more controversial Scottish psychiatrist R.D. Laing.