BBC2 and BBC Scotland commissioned Firecrest Films to document this incredible case, which had exclusive in-court filming granted by the Lord President of the Court of Session, the trial judge Lord Matthews, The Crown Office and Procurator Fiscal Service, and Police Scotland.

The Complete Camera Company used fixed-rig technology to capture every twist and turn in this unique investigation into the disappearance of Margaret Fleming, and the subsequent prosecution of her carers for murder.