Someone—or something—is trying to bury itself inside Soraya’s skin. 

It started her sophomore year of college, after she slipped in the shower and hit her head. Since then, nothing has felt real. The lights flicker all at once. She hears tapping at her window, and someone outside keeps calling her name.

Desperate to understand what’s happening to her, Soraya enters a neuroscience doctoral program in the Southwestern desert. But the deeper she dives into her studies, the more the line blurs between reality and distortion.

As a rare solar eclipse approaches, Soraya races to uncover the mystery. Eclipses have a way of exposing what’s been lurking in the dark, and if Soraya gets it wrong, she may lose far more than her sanity.