Paris, the Bastille Square, the Opera: the world's largest opera house. A huge factory for creating emotion but, deep down, what for? What energies work together to run a house of this size? What fuels the policy of creation, renewal of productions and the search for new audiences? On the one hand, the work of the production teams (artists and technicians) who are preparing Parsifal, Wozzeck and The Marriage of Figaro. On the other, planning, marketing, pricing… and balancing the books. This is not an idealized vision of a creative space but the portrait of a community at work, governed by a policy that attempts to get a grip on its times and the coming world.