Experiment in Terror

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Terror ... Tension ... Almost More Than The Heart Can Bear !

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.





Alternative Titles

Chantaje contra una mujer, Escravas do Medo, Próba terroru, Uma voz na escuridão, El mercader del terror, The Grip of Fear, Operazione terrore