Terror in the Haunted House (originally titled My World Dies Screaming) is a 1958 American horror film produced by William S. Edwards and directed by Harold Daniels. The movie stars Gerald Mohr, Cathy O'Donnell, William Ching, and John Qualen. Its plot follows newlywed Sheila, who moves with her husband Philp into a rural Florida mansion which she is horrified to discover was the subject of a recurring nightmare for which she sought psychiatric care in Switzerland. The house is the key to events that have haunted her husband's family for a generation, and Philip's intent is to use her mind to unlock the mystery. The film is notable for being one of only two movies shot in Psychorama, a stylistic gimmick which incorporated subliminal imaging onscreen. Psychorama, also known as the Precon Process, is an example of the "pure hype and hucksterism" which was a component of the "effort to (...) cash in on the mid-1950s controversy over subliminal advertising." Plot After living in Switzerland for 17 years, Sheila marries Philip Justin and begins having nightmares about a mansion owned by the Tierneys, a family she does not know. Back in the US, after driving up to their destination in Florida, Sheila is horrified to see the nightmare mansion. Philip insists that her nightmares will end if they stay there. Caretaker Jonah Snell tells Sheila that the house was abandoned 17 years earlier and he has been waiting ever since for "the mad Tierneys" to come home. Sheila begs Philip to take her away. He reluctantly agrees to leave, but the car will not start. Apparently someone has damaged the engine, forcing them to spend the night in the mansion. Despite believing that she had never been there before, Sheila has vague memories of, as a little girl, falling in love with a boy who carved their initials on a tree trunk. Jonah denies the tree's existence. That night, Sheila is awakened by screams, then sees a figure peering through her window. She tells Philip of what happened, and he decides it was Jonah trying to scare them away. Come morning, Sheila finds a tree marked "SW + PT." SW are her old initials ("Sheila Wayne" was her maiden name) but cannot remember who PT is. Nevertheless, it proves that she had been there before. Mark Snell, the mansion's owner, arrives and recognizes Philip each other. Confused about his presence,