When his brother disappears, Robert Manning pays a visit to the remote country house he was last heard from. While his host is outwardly welcoming, and his niece more demonstrably so, Manning detects a feeling of menace in the air with the legend of Lavinia Morley, Black Witch of Greymarsh, hanging over everything.
| Release Date | December 1, 1968 | |
|---|---|---|
| Status | Released | |
| Original Title | Curse of the Crimson Altar | |
| Runtime | 1h 27min | |
| Budget | — | |
| Revenue | — | |
| Language | English | |
| Original Language | English | |
| Production Countries | United Kingdom | |
| Production Companies | Tigon British Film ProductionsAmerican International Pictures | |