| Director | Curtis Harrington |
|---|---|
| Budget | $5 million |
The film's convoluted plot is anchored by a fictitious love triangle between Mata Hari and two military intelligence officers, the French Georges Ladoux (Oliver Tobias) and the German Karl von Bayerling (Christopher Cazenove). Ladoux and Bayerling are personal friends but end up on opposing sides of the war, providing ample opportunity to explore the dramatic tension between honor and personal loyalty on the one hand and patriotism and duty to one's country on the other.
Their ethical dilemma is contrasted to the amoral scheming of the main villain, Dr. Elsbeth Schragmüller (invariably known as Fräulein Doktor), a doctor of psychology and leading operative of German intelligence. Mata Hari's efforts to thwart Fräulein Doktor's assassination plot using a concealed bomb are eventually successful but lead her to be captured in deeply compromising circumstances by Ladoux, precipitating her show trial and execution, which Ladoux fruitlessly tries to prevent.
The film ends on a melancholy note with the reconciliation of Ladoux and Bayerling after the war.