Who Killed Dr Bogle & Mrs Chandler?

Part 1. A brilliant scientist and the wife of his colleague are found dead beside a picturesque river. Both victims are strangely covered and there are no clues as to how they died. The police soon have a suspect, but he has an astonishing and scandalous alibi. So begins one of the most baffling cases in the history of crime.

Part 2. As the toxicologist begins his investigation into the deaths, the police search for evidence at homes across the city and the media hunts down the prime suspect.

Part 3. The newspapers push new theories sidetracking the toxicology investigation. The inquest is the biggest story in town but it fails to identify the cause of death, let alone a killer. Bizarre new theories about spies and ray guns capture the headlines but the case goes cold. Forty years later, the toxicologist makes a stunning confession.

Part 4. A new investigation uncovers evidence missed by investigators - evidence that provides an answer as to how Dr Bogle and Mrs Chandler died.

Part 5. When a family confesses to destroying evidence, details of their story help identify the person who covered the bodies. A retired psychologist recalls meeting a young woman who witnessed the deaths.