Mourning his brother's recent death, Pierrick accepts his best friend Tessa's invitation to stay in her family home — at last, a week alone. But when her gets there, he finds the house already occupied by Tessa's sister Marie.
In Brittany, a notary is killed with shots to the head. His wife Joséphine is a suspect. Her husband had just sold part of their property to two shady real estate developers who wanted to transform the little fishing village into an ultra-modern marina for wealthy clients.
