Trying to remember the name of a programme I watched. It's an old case being reinvestigated. A young girl is strangled in a field with a scarf. I think the person convicted of the murder was thought to have climbed out of his window after seeing her in the field and murdered her, however seems the lad was afraid of wasps or bee,s which built a nest outside his window and he had it nailed shut. Turned out the killer was the mother of her best friend and her husband was, he claimed being "led on" by the girl. Anyone know the name of the programme?