Murder by Decree is a 1979 English-language Mystery Thriller movie written by John Hopkins and directed by Bob Clark and produced by Bob Clark and Ren Dupont. Sherlock Holmes investigates London's most infamous case, Jack the Ripper. As he investigates, he finds that the Ripper has friends in high places. Written by John Vogel. Murder by decree stars Christopher Plummer, James Mason, David Hemmings, Susan Clark, Anthony Quayle, John Gielgud and Jim Mcmanus. The movie is based on The Ripper File John Lloyd Elwyn Jones Sherlock Holmes characters by Sir Arthur Conan Doyle. The music was composed by Paul Zaza along with Carl Zittrer. Cinematography was done by Reginald H. Morris. The motion picture has a running time of 124 minutes. It was released on 1st February 1979. Murder by Decree was made on a budget of $5 million. Distribution rights for the motion picture were acquired by AVCO Embassy Pictures.