Scala a chiocciola was released in the year 1945。Scala a chiocciola is also called as The Spiral Staircase, Vindeltrappen, Spiraltrappan, Some Must Watch, Silence of Helen McCord, Kierreportaat, la nuit, Deux mains, Wendeltreppe, Escalera de caracol。

Beautiful young mute Helen is a domestic worker for old ailing Mrs. Warren. Mrs. Warren's two 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.

Scala a chiocciola actors and actresses include Elsa Lanchester, Ethel Barrymore。