The story of Jack the Ripper has fascinated me for most of my life. It was what led me to read Sherlock Holmes. In 1966, a film entitled "A Study in Terror" opened. It was the first film pitting Holmes against the Ripper. I saw this years later and I am still impressed by it. While not accurate at all, it has remained a favorite of mine to this day. When "Decree" came out, however, I was bowled over. Here was the actual, historical event fleshed out more accurately than it had ever been done before, in spite of the fictional framing. Is it factual? For the most part, yes. The main characters are all here, even my favorite suspect, the Duke of Clarence. Holmes has rarely been this intelligent on screen, and Mason as Watson is a very able assistant. Many good actors appear in large, important cameos, including John Geilgud, David Hemmings, and Frank Finlay. Credit must go to Bob Clark, who made the despicable Porky's, for creating a beautifully atmospheric film. From the foggy opening credits to the wonderful end title music, this Holmes stands near the top. On a side note, Frank Finlay portrays Inspector Lestrade in both "Decree" and "Study in Terror." He is a remarkable actor who is a treat for the eyes and ears. Filled with crackling dialogue, humor and suspense, this is a must for any Holmes fan and for anyone who likes a well-crafted mystery. I give it an "8" out of "10."