In 1968 three mentally ill children began a course of therapeutic treatment with the psychologist Irene Kassorla. Film cameras followed their improvement over six months and the results were shown in a documentary on 24 October 1968. The main sequences from this film are shown in tonight's programme. But for the children, the crucial question remains: was the improvement and the promise of the treatment sustained? The second part of the documentary looks at the work of Irene Kassorla today, at the children's families five years on - and at the prospects for the children in the life ahead of them. Narrators CHRISTOPHER CHATAWAY FRANK GILLARD Written and produced by ROBERT rim