On election night in 1981, celebrations spill out onto the street and there is an air of hope and change throughout Paris. But for Elisabeth, her marriage is coming to an end and she will now have to support herself and her two teenage children. She finds work at a late-night radio show and encounters a troubled teenager named Talulah whom she invites into her home.

A few days before the museum reopens, director Marie Losier is invited to be the first to re-enter and film her discovery of the place. During this night at the museum, she wanders from room to room and films the enigmatic creatures she encounters - animals, works, but also the artists and accomplices she has invited. These successive apparitions compose the scenes of a surrealist film that spectators can discover in a giant projection on the façade of the museum during an exceptional evening.

One night, three young women, the neon lights of the boulevards, empty streets, a mall, quiet gardens, the tower plaza, the esplanade of the station, a farewell coffee, a camera, a concert, a terrace, then the city waking up, Montparnasse.