Gravitalia is a French musical in 3 acts about an impossible love story between Augustin Marigny (Naël), the powerful CEO of a multinational company who lives at the top of a glass tower, and Sandrine Dubois (Victoire Cazal), the cleaning woman who moves through the corridors below. They belong to the same building but not to the same world. In Gravitalia, power lives at the top, truth moves through the corridors, and love becomes the force that breaks the vertical order.