Commander Raphaëlle Coste visits the police records bureau and meets the brilliant but unsettling young Astrid, who gives her a helping hand.

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.

When a famous writer is found dead, the duo starts an investigation on the trail of a tragic fire that could be the source of a Machiavellian revenge.