Detective Inspector Campbell (Gordon Jackson) looks into the murder of a teacher at a girls school where there are a number of suspects, including her colleagues and the married man she had been seeing.
Barbara Murray
Miss Shepherd
Gordon Jackson
Detective Inspector Campbell
Pamela Alan
Helen Cooper
Jane Aird
Miss Halstead
Beatrice Varley
Miss Hopkinson
Anne Butchart
Miss Oliphant
Imogene Moynihan
Miss Essex
Jenine Matto
Miss Stanislaus
