Watch 123Movies. Who is Madam Xanadu? Fascinated by the figure of a drag queen named Madame Xanadu, journalist João decides to investigate her story. For this, he seeks the help of people who lived with Madame even before she became one of the most outstanding characters in the city of Natal. As we follow João's investigation, consumed by an inexplicable melancholy, Madame follows the plan to end her own life.