Question: Who was Franz Overbeck? If there is no answer, please output "Insufficient information to provide an answer.". Movie title: When Nietzsche Wept Context: The film opens with the Russian-born novelistwho eventually became a member of Freud's 'Vienna Circle'-- Lou Andreas-Salome (Katheryn Winnick) who had an unconsummated (Platonic) 'love affair' with German philosopher Friedrich Nietzsche (Armand Assante), and to whom he allegedly proposed in 1882 (although whether her claims are true is very much up for debate) writing a letter to Dr Josef Breuer (Ben Cross), after hearing of his newly developed talking cure (Breuer was a friend of Sigmund Freud (Jamie Elman), who also appears in the story, and one of the influential fathers of psychoanalysis.). The two meet, and a reluctant and troubled Breuer agrees to Salome's plan; to cure the intense migraine attacks that plague Nietzsche, and at the same time, without his knowing, cure the despair that her refusal of marriage has inflicted upon him. Salome has persuaded Franz Overbeck (Nietzsche's friend) to send him to Breuer, however, Nietzsche offers no support to Breuer, so the course of treatment must end. In a chilling parallel, an encounter with a mistreated horse causes Nietzsche to redeem his appointment with Breuer (Nietzsche finally went mad after stopping a man from whipping a horse using his own body, before breaking down in tears and descending into insanity). Nietzsche later visits a whorehouse, where he has another attack of migraine, exacerbated by the overuse of a sleeping draught. Nietzsche decides that he will, instead of pursuing treatment, leave for Basel. Meanwhile, an up-and-coming psychologist Sigmund Freud, friend of Josef and Mathilde Breuer, suggests that if Breuer was to make some confession to Nietzsche, he may stop seeing any positive sentiment shown as being a bid for power, and indulge in confessions of his own. So, the next time they met, Breuer makes the suggestion that, while he treats Nietzsche's body, Nietzsche must "treat" Breuer of the despair that he feels after falling in love with one of his patients, Bertha Pappenheim (played by Michal Yannai), otherwise known as Anna O., a...
A:
Nietzsche's friend