Céline traveled to her fictitious hometown of Applegrove. Alex responds to a skeleton found in her uncle's orchard, which is identified as Céline's long-missing grandmother. Céline and Alex are joined by local police officer, Johnny. The squad becomes enmeshed in feuds between local families. Complications increase when the squad finds links to the bordering abbey of Saint-Benoît-du-Lac and reinvestigate the historical murder of Céline's cousin.

En visite en terre familiale, Céline est rapidement confrontée aux démons de son passé. Hantée par le meurtre sordide de sa cousine Véronique survenu 30 ans plus tôt, l'enquêtrice se lance avec Alex sur la piste de l'assassin, encore jamais identifié.