Eerie mood and scenes that burn into your psyche

A well-to-do man and his young wife (Gig Young and Carol Lynley) visit an island off the coast of New England, which was the childhood home of the wife. They are harassed by ruffians and learn that her now-dilapidated estate is haunted or cursed. Although warned to leave by the locals they decide to stick around. Havoc ensues.

“The Shuttered Room,” aka “Blood Island” (1967), is a drama/mystery with horror elements based on a story by August Derleth and H. P. Lovecraft. I saw it as a kid and certain scenes were effectively burned int... read the rest.