HPI Haut Potentiel Intellectuel - Season 1 (2021)

The assistant of Fanny Mariani, veterinarian specializing in exotic animals, finds her dead on the floor in her clinic, the printer nonstop flipping sheets with the word "murder" printed on them. Although the coroner first favours natural death, Morgane suddenly realizes that the victim has been poisoned with a Phyllobates terribilis, a small yellow frog, missing from one of the animal cages. While on the inquest, Morgane asks her mother about Romain.

While walking his dog, someone tries to kill Emilien Kerr, 62, by suffocating him with a plastic bag, but the concierge of his apartment finds him in the parking lot and the emergency services keep him alive although he stays in a deep coma. Kerr was a widower, a loner who worked as German translator, leading a calm life, but Alvaro finds that he had been set up. Apparently he had had dinner with his daughter Alexia, 29, ten years after his wife's suicide, of which she accused him. Alexia becomes main suspect, while another daughter visits Emilien in the hospital.

Alex Viniali, 46, divorced, estate agent and amateur football player, is found dead in a football locker room. The investigation reveals that he was also a member of a group of Lille hooligans, who had recently had a fight with a rival team. While Morgane gets her 15 year daughter Théa to do the internship of 3rd grade at the DIPJ, Commandant Karadec is troubled by a sexy dream with Morgane he has had

The body of Axel Maertens, 32, sailing and kitesurfing instructor and manager of the nautical club at Malo-les-Bains, is found suffocated with a rope on a beach, presumably by accident. Morgane notices that the knot was not tied by a sailor, such as Axel, which means it was a murder. A certain Jonathan, who at first declared to have witnessed the murder, finally confesses that he committed the crime, a situation that makes everyone feel relieved, but that Morgane and Karadec find hard to believe. They join forces to continue with the investigation.

The PJ attends to the murder scene of Pauline Garcia who has been run over and crushed by her own car. The team is happy to know that a witness may have met the murderer, but unfortunately they find out that she is blind. Pauline was an accomplished ice skater, selected to participate in the following Olympic games with the national team so the first investigations lead Kadarec and Alvaro to the ice rink where she used to train to interrogate her possible rivals.