Italy
A boy who operates a ham radio and a man who works at a satellite relay station witness the same murder thousands of miles apart and have to figure out how to warn the next potential victim. - IMDb
| Alta Frequência |  Portugal |
| Epikindyni syhnotita (transliterated title) |  Greece |
| Haute fréquence |  Canada |
| High Frequency |  Norway |
| High Frequency |  USA |
| High Frequency | |
| High Frequency - Tödliche Signale |  West Germany |
| High Frequency - Tödliche Signale | West Germany |
| Högspänning |  Sweden |
| Magasfrekvencia |  Hungary |
| På hög frekvens | Sweden |
| Qualcuno in ascolto | Italy |
| Rettende Signale | West Germany |
| Se acabó el juego 2: Haciendo contacto (video box title) |  Uruguay |
| Wysoka częstotliwość |  Poland |
| Высокая частота |  Russia |
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Umberto Caglini [12] | Danny |
