This wasn't my first time watching Dial 'M' for Murder. This is another classic movie that I saw in my high school English class and I really liked it. The main plot of Dial 'M' for Murder is set in London, where the wealthy Margot Mary Wendice, played by Grace Kelly, had a brief romance with the American writer Mark Halliday (Robert Cummings) a year before the plot current while her husband and professional tennis player Tony Wendice (Ray Milland) was attending a tennis tournament. Tony stops playing tennis to dedicate his life to his wife and finds a stable job after discovering the affair. He then blackmails an old college friend into killing his wife when things go wrong. Like most of Hitchcock's films, Dial 'M' for Murder was an adaptation of another art form, a popular work by Frederick Knott. Since Knott was also the author of the screenplay, the film remains extremely faithful to the play, although obviously not without differences. Knott's script was beautifully constructed and the dialogue was witty and simply captivating, with plenty of twists and turns that added to the complex plot and kept it from becoming boring. This was pure entertainment at its best. As usual, Hitchcock directs this film masterfully and has the right actors to do the job. Ray Milland and Grace Kelly give great performances and, surprisingly, Robert Cummings does a great job as Mark Halliday. People tend to forget that Grace Kelly starred in Dial 'M' for Murder, as 1954 was a big year for Grace Kelly. She starred in the Hitchcock classic "Rear Window" and won an Oscar for best actress in "The Country Girl." While she's not known for her role in this film, she brought a unique quality to this... middle of the paper... written with a crafty but effective script that never got too deep. Alfred Hitchcock manipulates and fascinates his audience like the master he is. Each scene has a sense of direction, great pacing and is realistically staged. The plot revolves entirely around the lock. It is the clue that literally reveals the mystery. It sends the message that even the perfect crime can have a minor, overlooked detail that leads to the complete unraveling of the entire plan. Overall, I really enjoyed this movie and would recommend more people to watch it. The acting was superb, the plot was gripping, and the characters were very intriguing. I honestly can't think of any other film that works so well using just one set. The movie was great and the mystery behind it kept me interested and I would love to see this movie in 3D as it was originally presented.