It's a commotion at the PJ offices. A woman in a police uniform committed suicide in Chistera's office during the night! Everything suggests that a colleague killed herself at her workplace to denounce the working conditions of police officers on duty. However, no one recognizes this colleague, and no papers are found on her. Chistera orders all departments to make themselves available to Darius and his colleagues, much to Marijo's delight! But very quickly, the Invisible's profile proves difficult to reconcile with that of a police officer. Who is Marianne? Why kill herself and denounce all this if she's not "from the house"? The truth probably lies with Driss, a young thirty-something under pressure in a housing project run by Vince, who seems to want to entrust Driss with more and more responsibilities. Around him, there are jealous people, a woman, and above all, a disappearance that will reshuffle all the cards...

Marijo and Duchess discover the lifeless body of a young man in his twenties. Asian in appearance, the man Marijo calls Douglas wears a poor-quality suit and has all the attributes of an athlete, or a dancer. Which doesn't necessarily match the bullet holes he received in the head. A professional job, then. The Invisibles' initial search leads them into the astonishing world of hip-hop dancers, performing spectacular choreographies. On the other side, the story follows Paul, a resoundingly successful businessman, who begins to panic when some clients ask him to recover their savings, which they have placed with him to make them grow. Who is this man who seems to have everything going for him? Has the success story he's been telling his wife and those around him been a lie all this time? Meanwhile, Darius discovers vital information about his father...

A corpse like no other lies before the brigade—a grotesque mosaic of calamities. Angie, the coroner, is stunned: this man didn’t just die... he was *claimed* by chaos itself. A wolf trap shattered his ankle, his shoulder was torn as if by some primal force, and a bullet ripped through him. They called him "Van Gogh" for the eerily staged crime scene, but the real story cuts deeper. In his abandoned caravan, the Invisibles uncover a world of obsession—puzzles, inventions, madness. He was chasing the fabled "Golden Toad," a treasure cloaked in legend and riddles. Did he perish at the brink of discovery? And just when it can’t get stranger, Colette and Roland—two octogenarians fleeing their retirement home—appear tangled in this twisted tale. Coincidence? Or is this bizarre death the key to a mystery decades in the making

Welcome to the world of football's "ultras"! The Lens Stabbers and the Lille Pitbulls have been waging a bloody war for years. Richelieu, this Invisible with patent leather shoes, found on a vacant lot, is quickly identified as a casual, namely an "ultra" who dresses in civilian clothes, who has a perfectly normal job but who, when night falls, transforms into a supporter within the Pitbulls. The Invisibles brigade will then dive into this world with its meticulous codes, with a hierarchy where we find characters from all walks of life, each more dangerous than the last. And faced with the silence of this environment towards the police, the brigade will no longer have a choice: it will have to infiltrate the world of the "ultras", using unorthodox methods...

In this two-part investigation, it is the skeletons of a woman, two children and a dog that are discovered at the bottom of a hole. Quickly, Darius and his team discover the identity of the man who would respectively be the husband and father of the victims. But upon arriving on site, a surprise: the man they come to see lives with his wife and children, and pretends to have stolen his identity that dates back several years. So, who is hiding behind these terrible crimes? At the same time, we follow a man who seems to want to get closer to his young son, summoning a terrible fear in his ex-wife... How are these two stories linked? For his part, Darius finally finds the final lead that will allow him to discover the truth about his origins. A trail with a name: "La Ruche," a community of people who advocate degrowth and a return to Nature...

Darius, who finally finds answers to the mystery of his origins, decides to stay at the "Hive", leaving the investigation to his colleagues. But very quickly, the rest of the Invisibles understand that the crime scene at the beginning is intrinsically linked to the community that Darius has just infiltrated. Without a cell phone, and following the members of the "Hive" on a journey, we wonder if Darius sees the trap closing in on him? In a mad race against time, the Invisibles will try to understand this tenuous link between "The Hive", the triple homicide and Darius, while, for his part, their leader will finally close the dark chapter of his identity, and his past... To, perhaps, free himself and definitively accept his story?