Rope, Alfred Hitchcock's first color film, was adapted from Patrick Hamilton's stage play Rope's End by no less than Hume Cronyn. Loosely inspired by the Leopold-Loeb case, the plot concerns two implicitly homosexual college chums, played by Farley Granger and John Dall. Their heads filled with Nietzchean philosophy by their kindly professor James Stewart, Granger and Dall kill a third friend just for the thrill of it. The boys hide the body in an antique chest in the middle of their posh apartment, then perversely arrange to hold a dinner party around the chest, inviting the victim's family, friends and fiancee (Joan Chandler), as well as their intellectual role-model Stewart. As the guests wander obliviously around the sealed chest, the killers make snippy, veiled comments about their deed--never going so far as to reveal the existence of the body nor their involvement in the murder. As all the guests file out, however, professor Stewart begins to suspect that something is amiss. In Rope, Hitchcock attempted the daunting technical challenge of filming the entire picture in one long, seemingly uninterrupted take. Actually, there are several edits in the movie: since a reel of film was divided into two ten-minute minireels back in 1948, the internal reel-breaks are "fudged" by having a dark object briefly obscure the camera lens, sustaining the illusion that no editing has taken place.
~ Hal Erickson, All Movie Guide