A reasonably entertaining intro to what we know for sure: the crime scenes, nature of the murders, victims and central figures involved in the investigation. Jan Leeming plays the roving reporter in London, visiting the crime scenes, and Ustinov paces gravely to and fro through the dried ice mist before a panel of experts in a 1988 San Francisco TV studio. It's live - hence the slips of the tongue and people repeating what others have said - yet on the whole well done, with illuminating expert insights, particularly from Donald Rumbelow. Recommended as an intro. If you are more serious, try the excellent books of Philip Sugden, Paul Begg and Donald Rumbelow.