| Release Date | January 31, 1975 | |
|---|---|---|
| Status | Released | |
| Original Title | The Spiral Staircase | |
| Runtime | 1h 26min | |
| Budget | — | |
| Revenue | — | |
| Language | English | |
| Original Language | English | |
| Production Countries | United Kingdom | |
| Production Companies | Raven Films | |
| Release Date | January 31, 1975 | |
|---|---|---|
| Status | Released | |
| Original Title | The Spiral Staircase | |
| Runtime | 1h 26min | |
| Budget | — | |
| Revenue | — | |
| Language | English | |
| Original Language | English | |
| Production Countries | United Kingdom | |
| Production Companies | Raven Films | |