This ranks as my favorite ghost story of all time. The mood, lighting, and (lack of ) special effects all make the "it's what you don't see that scares you" premise work great. To highlight this movie, watch it on Halloween night with the lights out and then try it again with the ( ugh ) remake and see how you feel. Robert Wise was a great director and this is probably his hidden gem. I purchased it a few years back on DVD and my wife and I watch it every year on Halloween and it never, ever ceases to give her or myself the chills, especially the scenes toward the end in the library, the "cold spot", and the "hold my hand" sequence. Julie Harris is perfect for her part. Skittish and susceptible to all things that "go bump in the night".