| Release Date | July 1, 1957 | |
|---|---|---|
| Status | Released | |
| Original Title | Hidden Fear | |
| Runtime | 1h 20min | |
| Budget | — | |
| Revenue | — | |
| Language | Danish, English, German | |
| Original Language | English | |
| Production Countries | Denmark, United States of America | |
| Production Companies | St. Aubrey-Kohn | |