Having watched it for the second time recently, I was struck by how razor-sharp the film's script actually was. Sure, it didn't have a big Agatha Christie-type mystery reveal; but the banter and repartee between the main characters was just so well-written. Of course, the film's framing and camerawork is legendary (for good reason) and Grace Kelly has a luminous screen presence. Suspenseful, intriguing, and a film that shows off a master at the peak of his craft.