USA
In 1903, Dr. Bailey meets a very strange woman on a train, then hears that she has died under mysterious circumstances. Through a friend, he becomes acquainted with the Bederaux family, all of whom seem to be neurotic and secretive; but the beauty of Alida Bederaux draws him into their circle...deeper than he'd planned. Who's in danger from whom? Who's crazy? Who can fathom the obscure motivations? - IMDb
| Angoisse |  Canada |
| Angoisse |  France |
| Experiment in Terror |  West Germany |
| Experiment perillós |  Spain |
| Experiment Perilous |  Australia |
| Experiment Perilous | Canada |
| Experiment Perilous | Canada |
| Experiment Perilous |  United Kingdom |
| Experiment Perilous | USA |
| I sklava tis agapis (transliterated title) |  Greece |
| Idílio Perigoso |  Brazil |
| Niebezpieczny eksperyment |  Poland |
| Noche en el alma | USA |
| Noche en el alma |  Venezuela |
| Noche en el alma |  Argentina |
| Noche en el alma | Spain |
| Noche en el alma |  Mexico |
| Noite na Alma |  Portugal |
| Ontmaskerd |  Netherlands |
| Peirama ston kindyno | Greece |
| Pokoli kísérlet |  Hungary |
| Schiava del male |  Italy |
| Vaarallinen koe |  Finland |
| Vådligt experiment |  Sweden |
| Рискованный эксперимент |  Soviet Union |
| 恐ろしき結婚 |  Japan |
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Peggy Miller | Cissie at 8 |
