Experiment in Terror

Set in San Francisco and based on the novel "Operation Terror" by Gordon Gordon and Mildred Gordon, who adapted it for the screen. It told the story of a woman (Remick) who is terrorized by a criminal using her to help him steal money from the bank where she works, threatening to kill her teenage sister (Powers) if she doesn't comply. She enlists the aid of an FBI agent (Ford) to thwart the criminal.