When Harriet Zapper is hired to find the identity of Karel Duval, and the true heir to the Duval family fortune, a bloody trail of murders leads the Big Zapper from London to the South of France and into a hornet's nest of betrayal and death.
| Release Date | January 4, 1974 | |
|---|---|---|
| Status | Released | |
| Original Title | The Swordsman | |
| Runtime | 1h 30min | |
| Budget | — | |
| Revenue | — | |
| Language | English | |
| Original Language | English | |
| Production Countries | United Kingdom | |
| Production Companies | Lindsay Shonteff Film Productions Limited | |