Experiment in Terror is a 1962 film by director Blake Edwards. It tells the story of a plot by a psychotic killer, "Red" Lynch (Ross Martin), to use a campaign of terror to force San Francisco bank teller Kelly Sherwood (Lee Remick) to help him steal money from her employer. Lynch begins terrorizing the teller and then kidnaps her younger sister Toby (Stefanie Powers) to ensure that the teller will help Lynch carry out his plan. Meanwhile, FBI agent John Ripley (Glenn Ford) attempts to foil his plans and doggedly track him down. The climax of the film is an exciting chase through San Francisco's Candlestick Park in the middle of a nighttime baseball game between the Giants and Los Angeles Dodgers. The film is highlighted by Henry Mancini's score and the moody black and white photography.

Kelly Sherwood is terrorized by a man with an asthmatic voice who plans to use her to steal $100,000 from the bank where she works. He threatens to kill her teenage sister Toby, if she tells the police. However she manages to contact F.B.I. agent Ripley. Written by Will Gilbert