Mata Hari is a German spy, working in Paris. She has already seduced the Russian general Shubin, and has now set her eyes on lieutenant Rosanov, a a young up-and-coming officer. In order to get her hand on secret documents in his possession, she spends a night with her. But the secret police is on her trail, only waiting to get enough evidence to arrest her...
While the film takes too many liberties to be regarded as in any way factual, it's nonetheless a thrilling piece of work.