What's the Name of That Book??? discussion

I read this book somewhere between 2020 and 2022, and the blurbs on the back described it as a zombie book even though the people weren't exactly zombies. I think the POV switched between the multiple main characters, all of which fled from their homes after everyone around them became seemingly possessed and started attacking them. I don't remember any of the character's names, unfortunately, but I believe the cover was mostly red? The book was also really thick, which is why I wasn't able to finish it in the two weeks I had before returning it to the library. SPOILERS AHEAD.

I'm very new to the site, so apologies if I did the spoiler html tag incorrectly.
(view spoiler)[ At some point on their way to their destination, there was a car crash that resulted in an explosion, if I remember correctly. I also think one of the main characters had a girlfriend who was possessed and turned on him, so he locked her in the basement I think. The characters eventually found out that they were possessed by angels, which is why they were being attacked. There was also some guy in either a hospital or morgue who was originally separate from the main story, but eventually turned into a giant demon / black hole or something. The main characters got in touch with the angels possessing them and tried to fight the demon, but I never found out what happened after that. (hide spoiler)]

The Fury by Alexander Gordon Smith

The Fury by Alexander Gordon Smith, Becca's suggestion

YES, that's it! Thank you so much, I've been searching for what felt like forever!

Glad you found your book, Elean.

The Fury (book 1) of The Fury series by Alexander Gordon Smith - Becca's find.