Research Unit

While jogging in the hinterland, Sara discovers the body of a woman: Céline Mac Gill, a therapist at an autism center. Next to her, prostrate, is Nathan, one of her young patients.

Flavie celebrates her 18th birthday, surrounded by Hugo, her boyfriend, and her gang of friends. She's over the moon, but wakes to a nightmare. Tied to a chair, Hugo is dead, a screwdriver stuck in his neck. At his feet, Flavie, unconscious. And in their bedroom, unharmed, Mathis, their 9-month-old son. Why did they attack these young parents?

Augustin, 25, is found drowned in the harbor. For several days, he had been setting up his foodtruck there, awaiting the arrival of Joséphine Brucker, a talented young sailor. Augustin has a secret to tell her: they're brother and sister! But Joséphine is not an adopted child.

Supermarket security guard Michel Mariani is found beaten to death on a beach. The day before, he was celebrating with his wife and son the end of a long period of stress and tension, having finally signed a permanent contract and managed to keep their house. His wife was stunned to discover that Michel had resigned before the party. Why risk losing everything?

A private jet sends distress messages to controllers at Cannes-Mandelieu airport. The out-of-control aircraft nearly crashes into the control tower, before managing to make an emergency landing on the tarmac. Rescuers quickly arrived and made a macabre discovery on board: they came across two lifeless bodies, lacerated with knives, before discovering the pilot between life and death.

In the hills above Cannes, a couple of partygoers stumble down an alleyway and discover the body of a strangled woman. The victim was a certain Déborah Walter, photographer and obviously also an escort. But it's not that simple Déborah was a mother, married to a prestigious architect.

Arriving at a new crime scene, Bernier and his team discover that the victim is the father of Leslie's boyfriend Julien. Everything points to the young man, the perfect embodiment of the gilded youth whose father had just cut him off. Leslie is convinced of her boyfriend's innocence, but does she really know him? And above all, is she really safe with him?

Pauline Desbordes, star of the latest culinary reality show, is found murdered in the Michelin-starred restaurant where she had worked since the show began. In the kitchens of this old-fashioned gastronomic establishment, Bernier and his team discover that the self-taught young prodigy had been rather poorly received by the brigade.

A body washes up on the beach. It was that of Caroline Vincenti, a media-savvy lawyer who, among other things, took up the cause of migrants. She was the mother of 6-year-old Alice. But while investigating, Bernier and his team discover that Alice Vincenti, the victim's daughter, had died in a terrible accident two years earlier. Who is this little girl living with the lawyer?

Sébastien Autier, an art teacher adored by his pupils, was murdered in an atrocious manner, his throat slit and then hung by his feet from the parapet of a bridge. The murder weapon was found miles away, next to another corpse that no longer existed! Was the teacher, who taught his pupils to reject conformity, having a negative influence on them?

The body of Ophélie, aged 19, was abandoned in the boot of a car due to be scrapped. A babysitter for a wealthy perfumer in Grasse, she had just resigned without explanation, even though she was known to be very attached to children. At first sight, the young girl was not quite what she appeared to be.

Triathlon champion Sasha Duroy has been murdered. Bernier and his team learn that the victim was the object of a veritable cabal. Accused of doping and of being a man, she went through hell.

As passers-by look on, a young woman topples from her 4th-floor window, holding her daughter in her arms. Suicide? Murder? The apartment is devastated. Both had been living under false identities. Clearly, they were running away from someone.

Bernier is caught up in his past: Garance, the woman he briefly loved after a failed marriage, has been murdered. Unhappy and jealously reproached by the prosecutor, Bernier does everything in his power to find the murderer, until he goes off the rails.