Silent Witness: Friends Like These | 1997
When two teenage boys find the body of an old woman, the police find enough evidence to point the finger at a local alcoholic with a history of violent crime. However, Sam sees the same two boys recreating the crime with the sort of detail that only the perpetrators would know. She has a tough time convincing her colleagues, including Peter Ross, that the boys could be involved. Ross, with whom Sam is having a relationship, is sure they already have the murderer and his lack of faith undermines their relationship. Sam is forced to put her job on the line to prove herself.