The setup of Samuel Bodin's 2019 horror TV series "Marianne" is deliciously fun. A horror author named Emma Larsimon (Victoire Du Bois) has just killed off the main character of her series of witch-based horror novels, happy to retire the series. Weirdly, one of Emma's friends, Caroline, calls her up and explains that her elderly mother has come to believe that she is possessed by Marianne, the witch from Emma's books. Indeed, Caroline takes her own life (in public) after talking about how Emma's parents are going to be taken by Marianne as well. When Emma returns to her home town, her parents soon attack her assistant Camille (Lucie Boujenah) before wandering into the woods naked, bloody runes carved in their faces.

And that's just in the first episode. The rest of the eight-episode series takes place mostly in Emma's hometown as she returns to suss out her youth and solve her personal witchy mysteries.