Crimes parfaits S03E04 - Un cœur sombre

A maintenance worker at the Nice aquarium is found dead. According to the autopsy, it would be a murder covered in heart attack thanks to the hacking of the victim's pacemaker. Suspicion quickly turned to the site veterinarian, Marie Michalik. Yet this mother of an autistic child is nothing like the ideal culprit. Claire Moreno and deputy Hubert de Montalembert seek what link could exist between the suspect and the cleaner and what would have pushed this altruistic woman to commit a crime.