When Mata Hari arrived in Paris she was penniless. Within months she was the most celebrated woman in the city. As a dancer, she shocked and delighted audiences; as a courtesan, she bewitched the era's richest and most powerful men. But as paranoia consumed a country at war, Mata Hari's lifestyle brought her under suspicion. In 1917, she was arrested in her hotel room on the Champs-Elysees and accused of espionage. Told in Mata Hari's voice through her final letter.