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

Raphaëlle and Astrid take an interest in a former resident of the mysterious house, a woman who murdered her entire family there 24 years ago.

A Natural History Museum employee is found dead at the foot of a dinosaur skeleton. Not a drop of water on the horizon and yet, the victim drowned.

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.

When a man collapses on a bus, possibly killed by an extremely contagious disease, the duo ends up confronting the leader of an eco-terrorist group.

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

A woman is murdered, but the main suspect was in prison at the time of the events. The duo quickly realizes that it is the work of a serial killer.