Combine elements of the Covid pandemic, Bird Box, and a touch of early Walking Dead.
Here you have Your Shadow Half Remains by Sunny Moraine. 
Thank you to Tor Nightfire for my gifted  giveaway copy!
Okay, this slim volume is deceptively packed. It's insane. And I mean that in the best way.
I adored the author's writing style, which is lovely, lonely, and dark. It's so matter-of-fact in describing a horrific world where a virus of sorts turns humans to flesh-eating madness. 
The best anyone knows is it's caused by looking at faces, eyes. Perhaps even one's own - the "rules" aren't clear. Hiding away from all human contact (or worse) has become the norm for survival.
But then Riley meets Ellis, a new neighbour to her area. Boundaries are tested in the overwhelming need for connection.
And with that, we have my first five-star read of 2024. There's so much food for thought here, though be aware of the bleak, violent imagery and body horror within. 
Very much recommended!
For release on Feb. 6.