In a small island off the American coast, the Whateleys live in an old mill where a mysterious bloody being creates an atmosphere of horror. After her parents get killed by lightning, young Susannah is sent to New York by her aunt Agatha, who wants her to avoid the family curse. Years later Susannah, now married, persuades her husband to spend a holiday in the abandoned mill. Once on the island, Susannah and Mike soon find themselves exposed to the hostility of a gang of thugs led by Ethan, Susannah's brutal cousin...
Sleep one night in the house with the shuttered room and you may never want to sleep again... (original theatrical poster)
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Did You Know?
The film was originally offered to director Ken Russell, who turned the project down. David Greene, a successful TV director, took it on because, in his late 40s, he thought it a last chance to get away from TV and into movies; he was, however, greatly dissatisfied with the script and it was being rewritten right up to the end of filming. See more
Throughout the movie the two rear windows of the Thunderbird are alternately up or down. This happens often in the same scene. It is first noticeable as they back off the ferry. As they back up, the passenger side rear window is up and the driver's is down. But as they as turning around upon leaving the ferry, the driver's side rear window is up and the passenger's is down. This becomes very noticeable throughout the film. See more