During the Belle Époque, the little mixed race girl Dilili was part of a Kanak village set up in a Parisian public garden. Orel, a scooter driver, slips into the enclosure to meet Dilili, who finds him in the evening. She tells him her story: she has both European ancestors and Kanak ancestors, she was educated by Madame Michel (who is none other than
Louise Michel), then on her arrival in Paris, she met a countess who taught her good manners. Orel offers Dilili a ride around Paris on his scooter while he makes his deliveries. Enthusiastic, Dilili discovers the streets and squares of Paris. They meet
Marie Curie, to whom Orel had to bring her daughter Ève, then the singer
Emma Calvé, friend of Orel, who likes to sing on the underground lake which extends under the
Garnier Opera, as well as the writer
Marcel Proust in the company of his friend
Reynaldo Hahn. The little girl writes down in her notebook the names of the celebrities she meets and who give her all kinds of ideas for jobs she would like to do later. Very quickly, Dilili is intrigued by the announcements from newspaper sellers: little girls are regularly kidnapped by a network of bandits who sign their crimes under the name “Male-Masters”. Dilili immediately decides to investigate to find the missing girls. Herself the victim of a first kidnapping attempt in a public garden, she is saved by Orel. The investigation leads Dilili and Orel to the Moulin du Diable, in
Montparnasse, in the poor neighbourhoods where they are poorly received. They cross the fence, but are attacked by a rabid mastiff who bites Orel at the risk of transmitting the disease to him. Dilili puts Orel in the scooter and races back down the slope to the Pasteur Institute, where she begs
Louis Pasteur to vaccinate Orel. Once the latter is out of danger, the investigation can resume. Pasteur and his entourage give new leads to the investigative duo. They then go to the boat wash, a building which houses many painters of the moment. There, they learn that the bandits regularly meet in front of the
Moulin Rouge shows . Dilili meets
Colette there, then the painter and poster artist
Henri de Toulouse-Lautrec, who helps them spot two Male Masters. By eavesdropping on their conversation, Dilili learns that they are preparing to rob a jewelry store using equipment that one of the bandits will collect "at the gates of hell" . The two young detectives immediately go to the police, but no one believes them. Their painter friends direct them to the workshop of the sculptor
Auguste Rodin, because the “gate of hell” is the name of one of his sculptures. Dilili admires a work by
Camille Claudel there. When they arrive in the garden where the “door to hell” is located, the bandit is already there and Orel pursues him without success: as soon as he steps out into the street, the Male Master inexplicably disappears. However, they take their post to watch for the robbery around the jewelry store. Dilili distracts the bandit who stands guard, while Orel unharnesses the horse from his carriage. When the bandit responsible for the robbery comes out of the jewellery store, Dilili uses his skipping rope to entangle his legs and make him fall: his loot spills on the ground and the two bandits are arrested by the police. An admiring witness, who turns out to be the Prince of Wales passing through Paris, supports Dilili in the face of an unfriendly police officer. Dilili and Orel rest with Emma Calvé, who helps them with her advice. His driver, Lebeuf, makes racist and unpleasant remarks to Dilili at their first meeting. Some time later, Dilili is the victim of a second kidnapping attempt by an old man who pretends to fall. But Dilili recognizes the Male Master by the ring he wears in his nose and Orel's intervention pushes the “old man” to flee. Unfortunately, Emma Calvé entrusts Dilili to Lebeuf some time later. However, he was approached by a Male Master who promised to improve his lot if he delivered the little girl to them. In the evening, Emma Calvé and Orel wait for Dilili in vain: she has been kidnapped. The next day, Lebeuf comes to Emma Calvé's house. In front of her and Orel, stunned, he tells them what happened: he delivered Dilili to the Male Masters as agreed and was able to enter their underground lair. Male Masters control the sewers, allowing them to appear and disappear very quickly. Their leader, the Grand Male Master, dressed in a plum-colored tunic, is convinced that women risk taking power and he seeks to enslave them. In the den of the Male Masters, the kidnapped little girls are educated to be nothing but“four-legged” , who are dressed in black, walk on all fours and are slaves to men to the point of serving them as seats. It was too much even for Lebeuf, who slipped away and now wants to help Emma Calvé and Orel fight against the Male Masters. Lebeuf guides Emma Calvé and Orel into the sewers under the Garnier opera house, to one of the entrances to the Male-Masters' lair. Orel finds, floating on the water, pages torn by Dilili from her notebook and which she has scattered to indicate where the Male Masters have taken her. While everyone searches for her, Dilili is re-educated with the other little girls, forced to walk on all fours. But she escapes by diving into the sewers. Just when she comes across a closed gate and despairs, Orel, Emma Calvé and Lebeuf arrive and rescue her. Everyone returns to rest at the opera. They then meet
Sarah Bernhardt, who welcomes them to her luxurious residence. Dilili rests there and regains hope while everyone devises a plan to rescue the little girls. The Male-Masters' lair is ventilated by an old factory chimney equipped with a weather vane in the shape of a snake. We can therefore deliver the little girls from the air using a light airship operated by pedals. It was the engineer
Alberto Santos-Dumont who designed the plan for the balloon, but its large dimensions and the urgency of the situation were such that Sarah Bernhardt called on the German baron
Ferdinand von Zeppelin to manufacture it. In the evening, the airship waits for the investigators on the roof of the Garnier opera house. The plan works as planned and the young girls climb back up the chimney using a rope ladder. The airship then reaches the
Eiffel Tower and the Champ de Mars, where Emma Calvé sings a divine tune in honor of the little girls and Dilili. The kidnapped little girls are reunited with their parents and the Male Masters network is dismantled. For Dilili, life in Paris is only just beginning. == Cast ==