Movies You Haven't Seen But Should: The Haunting

Wiki:

The Haunting is a 1963 horror film directed by Robert Wise and adapted by Nelson Gidding from the novel The Haunting of Hill House by Shirley Jackson. It stars Julie Harris as Eleanor, Richard Johnson as Dr. Markway, Russ Tamblyn as Luke, Claire Bloom as Theo, Valentine Dyall and Rosalie Crutchley as Mr. and Mrs. Dudley, and Lois Maxwell as Mrs. Markway. The film centers around the conflict between a team of paranormal investigators and the house in which they spend the night.

Eleanor Lance, Theodora, and Luke Sanderson accompany Dr. John Markway during an investigation into the paranormal. Markway believes that an old mansion with a sinister past called Hill House will provide him with the proof he seeks of the existence of the supernatural. Luke is the next in line to inherit the house, and is volunteered by the current owner to join Markway both as a skeptic and overseer. Eleanor and Theodora are the only responders to an invitation Markway sent out to various people who had come in contact with the supernatural at some point in their lives. After the four meet up in Hill House, strange things begin to happen, most of which seems centered on Eleanor. Eleanor finds that she enjoys the attention the house affords her, and becomes drawn deeper and deeper in by the forces within the house.

The Haunting on the IMDB