Cannes Confidential

A monk is found murdered below the fort Royal on the St Marguerite Island outside Cannes. The infamous island that housed the Man with the iron mask. Who killed the monk and why? Camille and Harry cross paths once again, making Lea jealous. Harry's old friend Father Placid was a mentor to the dead monk, and Camille and Lea have to track down the victim's troubled past in order to find the answers. Harry is one step ahead but gets in over his head, having to rely on Camille's help to stay alive. Meanwhile her father's nemesis Julien Boire makes it even more personal by approaching Camille's sister Margaux. His warning to Camille is clear — stop digging or else.

Boire tries to run Camille off the road, but she manages to visit her father Philippe in prison. Camille and Lea are ordered to babysit arms-dealer and billionaire Leo Duval at The Majestic. Duval has been facing death threats, and it is rumored that the legendary assassin Nightshade is hired to kill him. Problem is that the Nightshade hasn't been seen for fifteen years. Harry acts as the guide and encyclopedia trying to stop the assassin, something that brings Camille and Harry closer. When the dead body of a former MI6 operative shows up, Camille realizes the Nightshade is still alive. The riddle gets even more complex as the night closes in. There are stronger motives than money.

Pascal, the son of the famous conductor Francois Fontaine, is found hanged after a seance. The Fontaine family are supposedly cursed, due to the tragic fate of the victim's mother Babette who died in a mental asylum. Everybody but Camille that is, she doesn't believe in ghosts. Camille, Lea, and Harry join forces to catch the killer, and have to go through shady mediums, news archives and scorned lovers to find the truth. A true southern gothic story, where nothing is what it seems. During all this, Camille and Harry try to lure Boire into a trap, something that will have dire consequences. Especially for Lea. In the end, Camille also realizes why Harry is in Cannes.

During the Cannes film festival, Camille and Lea are assigned a murder case of famous actress Celeste Badeau's assistant Zina. Was the movie star the intended target? The prime suspect is the notorious paparazzi Miko Zajac blackmailing Celeste, but why? During the investigation Lea meets Zina's girlfriend and Lea's former lover Eloise, and Camille sees that it affects her. Meanwhile Harry's daughter Emilie has been threatened by Boire, and he decides to stop the thug once and for all. Harry breaks into Boire's office and finds alarming evidence that will shock Camille. Her father Philippe is about to be released, and Harry has to walk a fine line trying to protect Camille from ending up in the line of fire.