I am unsurprised to find this miniseries rated 9.2. It remains one of the most powerful, heart and gut wrenching thrillers of all time. Some other reviewers have commented that Edge of Darkness represents the true potential of television as a dramatic medium. It's length (as a miniseries) probably presaged the future of high quality per hour viewing that has become a staple output of English 'Crime/Thriller' miniseries(nobody does crime better) or perhaps the Sopranos - however -all comparisons aside, the sheer power of the story is remarkable.
If a key to a story is to have sympathy and empathy for its characters, Bob Peck's portrayal of the descent into despair and insanity of Inspector Ronald Craven is a powerhouse. We experience the absolute depths of his personal horror at the loss of his child in curious circumstances and as he delves deeper, we are drawn into his pain and shock at the secret life of his child.
Edge of darkness has so many things going for it , it's hard to know where to start - honest, egdy performances, crisp writing and dialogue, layers of intrigue, the eerie and beautiful soundtrack of Michael Kamen and Eric Clapton - (sigh) - its smart, scary and challenging.
If you are a student of film/tv, see it. If you are jaded with current shows, go back and watch it and see the possibilities. It is an example of the art form at its most effective, making us part of the story and carrying us into its emotion.