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"There's always another twist to..."
A mute young woman is stalked by a serial killer at her uncle's mansion.
14 Cast Members
Jacqueline Bisset
Helen Mallory
Christopher Plummer
Dr. Joe Sherman
John Phillip Law
Steven Sherman
Sam Wanamaker
Lieut. Fields
Mildred Dunnock
Mrs. Sherman
Gayle Hunnicutt
Blanche
Elaine Stritch
Nurse Baker
John Ronane
Dr. Rawley
Sheila Brennan
Mrs. Oates
Ronald Radd
Oates
Heather Lowe
Blind Girl
Christopher Malcolm
Policeman
Harry Van Engel
Police Photographer
Tina Simmons
