USA
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. - IMDb
| Rating | Percentage % | Votes |
|---|---|---|
| 10 | 0% | 0 |
| 9 | 0% | 0 |
| 8 | 100% | 1 |
| 7 | 0% | 0 |
| 6 | 0% | 0 |
| 5 | 0% | 0 |
| 4 | 0% | 0 |
| 3 | 0% | 0 |
| 2 | 0% | 0 |
| 1 | 0% | 0 |
| 1 |
| Allo, brigade spéciale |  Belgium |
| Allô... brigade spéciale |  France |
| Chantaje contra una mujer |  Spain |
| Chantaje contra una mujer |  Mexico |
| Chantaje contra una mujer | USA |
| Epiheirisis 'Tromos' (transliterated title) |  Greece |
| Escravas do Medo |  Brazil |
| Experiment in Teroare |  Romania |
| Experiment in Terror |  United Kingdom |
| Experiment in Terror |  India |
| Experiment in Terror |  Singapore |
| Experiment in Terror | USA |
| Experiment in Terror |  Australia |
| Experiment in Terror |  Canada |
| Experiment in Terror | Canada |
| Fare uten ansikt |  Norway |
| Fruktans grepp |  Finland |
| Fruktans grepp |  Sweden |
| The Grip of Fear (premiere title) | United Kingdom |
| The Grip of Fear |  Ireland |
| Hallo, speciale brigade | Belgium |
| Kauhun lunnaat | Finland |
| Kestävyyskoe | Finland |
| Korku çemberi |  Turkey |
| Der Letzte Zug |  Austria |
| Der Letzte Zug |  West Germany |
| El Mercader de terror |  Argentina |
| Mercader del terror (short title) | Mexico |
| El Mercader del terror |  Chile |
| Operacija teror (literal title) |  Yugoslavia |
| Operazione terrore |  Italy |
| Próba terroru |  Poland |
| De Stem in het duister |  Netherlands |
| Stemmen i mørket |  Denmark |
| Terror-kísérlet |  Hungary |
| Tsuiseki |  Japan |
| Uma voz na escuridão |  Portugal |
| Xantatge a una dona | Spain |
| Эксперимент с ужасом |  Soviet Union |
| 恐怖实验 |  China |
| 昼夜惊心 | China |
| 追跡 | Japan |
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Warren Hsieh [11] | Joey Soong |
