When a lawyer collapses in a courtroom, Raphaëlle and Astrid start an investigation which leads them to a house filled with supernatural phenomena.

Astrid and Raphaëlle find out that the dead body discovered after the collapse of an underground gallery is that of an 80 year-old alchemist.

After the president of an autistic association dies mysteriously, a new corpse is found. Though officially deceased days earlier, he is a suspect.

A trainee is found dead in the huge organ of the Maison de la Radio. Astrid and Raphaëlle investigate the very heart of the instrument and meet an organist prodigy and her cantankerous old teacher. Things get tough when a second lifeless body is found near the organ. The modus operandi is the same... A track is beginning to emerge: what if it was the music that kills?

A renowned astrophysicist is found struck down even though no storm had occurred at the time of his death. Social networks take over the case and cry conspiracy when we learn that the victim was about to divulge a state secret.

Consultant criminalist, Astrid Nielsen, who is also autistic, helps Commander Raphaëlle Coste solve criminal investigations. With conspiracy theory followers or a Native American community, in places as varied as a monastery or a psychiatric hospital, the two women combine their talents to solve these cases. Furthermore, Astrid could well lift the veil on an already old mystery, which her father had already tried to elucidate, but without success. The series, a real audience success in France, is also broadcast in around twenty countries, in Europe, Latin America, the United States and even Japan.

The heir of a rich Breton family is found dead in a bar. Problem: he already died two years ago! Raphaëlle and Astrid travel to Brittany to uncover the darkest secrets of this illustrious family...