When a woman begins to investigate her husband's mysterious death in a plane accident she discovers the involvement of a woman known simply as Diana.
| Release Date | May 1, 1963 | |
|---|---|---|
| Status | Released | |
| Original Title | Echo of Diana | |
| Runtime | 1h 1min | |
| Budget | — | |
| Revenue | — | |
| Language | English | |
| Original Language | English | |
| Production Countries | United Kingdom | |
| Production Companies | Butcher's Film Service | |