I haven't read the story in a long time, but I do remember it being better and a little more interesting, even if I preferred other Sherlock Holmes stories. This adaptation while not absolutely awful was a disappointment.
Starting with the good things the visual detail is excellent as always and the production values are top-notch. The music is beautiful and haunting, and the acting is not too bad, it's been better but it was certainly one of the better assets of this mystery. Jeremy Brett does look ill here, but he is solid as Holmes, while Edward Hardwicke is a dignified Watson and Roy Marsden is decent in his role.
However, the direction is a little too stodgy, but I have to say the biggest let downs were in how the story was told, the pacing and the script. The pacing is very pedestrian here, consequently the story is quite uninteresting and dull, while the final solution didn't do anything for me as it was too predictable. The writing was disappointing too, it was quite turgid and clumsy, with occasional flashes of intelligence and sophistication.
Overall, watchable but disappointing. It is worth watching for the production values and the acting, but the story and writing could have been much more. 5/10 Bethany Cox