Marta, a young university professor, finds out that his father belonged to a Freemasonry. She starts a journey of initiation that will take her to Rome, Istanbul, París, Madrid and Barcelona. She also learns what is the relation between Gaudí and the Freemasonry, the rituals, the symbols and the infinite life of the lodges. She will discover the special relationship between women of the Freemasonry. Her investigation will lead her to the hidden Freemasonrys that gather with total discretion all over the world.
—Black Flag