When a wealthy young banker suddenly becomes ill and dies, his widow calls in Sherlock Holmes to unravel a mysterious tale of family rivalries, opium addiction, and thwarted dreams. His widow claims he was murdered, but was he? This version has an extensive "prequel" added before the actual Conan Doyle story begins. I use it with my middle school students. We watch the episode up to the point the original story begins while students keep a detective's log and sort the clues according to facts, opinions, and reasoned judgments before forming their predictions as to the resolution of the story and how he died; then we read the original story to find out if they were right and compare and contrast with the end of the video. I have watched it five times in a day for five years and still find it entertaining, so I would give it a big "thumbs up".