Back in 1916, beautiful young mute Helen can be just 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' strikes the neighbor hood. She implores her doctor, Dr. Parry, to shoot Helen out for her own safety. It becomes obvious that Helen is at peril If another murder occurs in the Warren mansion.