When Margaretha Zelle, a young woman living in The Hague, answers a lonely hearts advertisement she becomes drawn into a relationship with an army captain twice her age. After a hasty wedding, they depart for Indonesia, where the marriage collapses amid infidelity and violence. Seeking a new life, Margaretha returns to Europe and travels to Paris, where she adopts the stage name Mata Hari, reinventing herself as an exotic dancer. In her new role she...