Demonstrating that a little knowledge is a dangerous thing, a convicted strangler studies the paranormal and finds a way to render himself invisible. Once he escapes, he sets out to find and eliminate five women who remind him of the mother he murdered. A police lieutenant sets out to safeguard them and bring the invisible killer to justice.
Cast
Robert Foxworth
Lt. Charles Barrett
Stefanie Powers
Candy Barrett
Sue Lyon
Darlene DeLong
Mark Slade
Detective Holt
Leslie Parrish
Colleen Hudson
Marianna Hill
Bambi Greer
Elke Sommer
Chris Hartman
Percy Rodriguez
Captain Wells
Alex Dreier
Dr. Ulmer
Rayford Barnes
Sgt. Archer
Frederick Tully
Detective Sloan
Frank Ashmore
Roger Sands - The Invisible Strangler
Cesare Danova
Mario
Eddie Firestone
Jacobs
Bill Overton
Kingsley
Jennifer Burton
Policewoman
George Cheung
Jim, Medical Examiner
Albert Cole
Cop in Alley
John Hart
Harbormaster
Jo Anne Meredith
Carlotta Sands
