Lune rousse

Morgane, 30, is a criminal psychologist. The bloody murder of her grandmother, an illeterate old woman, brings her back to her childhood's town, from where she had ran away when she was 15. The presumed murderer has been arrested; rumours had it her grandmother was a witch and she killed his wife with a curse, so he seeked vengeance. Morgane soon starts to reject this version of the truth. The murderer is still at large, and threatens her directly. He has already killed serveral persons and soon, he'll kill again. Morgane investigates within the town, helped by Lionel Cayatte, an officer from the town, and Garick Maltaverne, a young priest as curious as he is attractive. A healer murdered during Morgane's stay allows her to make the connection with several previous old murders. The killer knows all those people and he's circling around her. Who can it be?