Response to question about Shelley Duvall in The Shining

Kubrick's treatment of her, turning her into human wreckage, is a visual that thrives in the film. That her character is already weak and careful to begin, with this cautious timidity, and gradually rendered an emotional scrapheap thanks to "Jack Torrance" (Kubrick) is important to the power of the film, showing how she is deteriorated by the Overlook's destructive influence.