The Spiral Staircase
Nick P said on 2017-11-05:
Hitchcock movie not directed by Hitchcock.

Director: Robert Siodmak, Nicholas Musuraca Writer: Ethel Lina White, Mel Dinelli
Run time: 83 minutes Release date: 1946-02-06
Floor location: Mystery/Suspense Format: DVD
Production Countries: United States of America
Spoken Languages: English
In 1916, beautiful young mute Helen is a domestic worker for elderly, ailing Mrs. Warren. Mrs. Warren's two adult sons, Albert (a professor) and womanizing impudent Steven, also live in the Warren mansion. Mrs. Warren becomes concerned for Helen's safety when a rash of murders involving 'women with afflictions' hits the neighborhood. She implores her physician, Dr. Parry, to take Helen away for her own safety. When another murder occurs inside the Warren mansion, it becomes obvious that Helen is in danger.