This is a classic Alfred Hitchcock thriller of a wheel chair bound James Stewart who witnesses a murder and then has to convince his girl friend Grace Kelly and other people that what he saw actually happened becaues the police can find no evidence that a murder has been committed. This is good Alfred Hitchcock film that is a good mixture between voyeurism and a more traditional who done it. There are strong performances from both James Stewart and Grace Kelly that is enhanced by some good camera work from Alfred Hitchcock in what is a very constrained environment .