During the night of August 4-5, 1952, three Englishmen, Jack Drummond, his wife Anne and their daughter Elizabeth were murdered near their car near the farm of the Dominici family, in the commune of Lurs in the Alpes-de-Haute-Provence. Denounced by two of his sons, the patriarch Gaston Dominici was judged and condemned without any real evidence.

In Marseilles (France), skilled pizza delivery boy Daniel who drives a scooter finally has his dreams come true. He gets a taxi license. Caught by the police for a huge speed infraction, he will help Emilien, a loser inspector who can't drive, on the track of German bank robbers, so he doesn't lose his license and his dream job.

The Castle of Olive Trees is the ancestral home of the "Laborie de Sauveterre". Located at "Châteauneuf-du-Pape", it holds many mysteries and legends. Like every summer "Estelle Laborie" goes there to take some time off. But this summer she take an important decision: run from Paris and stay here at the castle definitively. Little does she knows that her arrival will awake a lot of drama and secrets, beginning with this enigmatic "Pierre Séverin" who wants to demolish the castle to the ground, to make an amusement parc "Cigaleland". She will learn unfortunately that this "Pierre Séverin" is also knowned as "Marceau" the little boy of the steward of the castle when her father was the master of the domain. That steward also died in terrible circumstance. However Estelle decides to face this vengeance and save the castle with the aid of archaeologist "Raphaël Fauconnier"...