In 1852, the mountain village in Provence where Violette lives is brutally deprived of all its men after the repression of the republicans ordered by Napoleon III. Women spend months in total isolation, desperate to see their men again. In this situation, they make an oath in case a man arrives in the village.
Mathias Freire, a psychiatrist, and Anaïs Chatelet, a homicide squad captain are connected to each other through a series of crimes inspired by Greek Mythology. United in an investigation they will have to face one another and their own demons.