Anne Terret

A young woman is hired to house-site at a grand estate far in the woods, but the dream-job becomes a nightmare when mercenaries turn up who will spare no effort to recover something from the home.

After surviving a mass shooting at her office, a former mean exec attends a secluded therapy retreat in the hopes of recovering, but when odd occurrences keep happening, she begins to suspect that something else is lurking in the shadows.