House of Earth and Blood by Sarah J Maas

Bryce Quinlan had the perfect life-working hard all day and partying all night-until a demon murdered her closest friends, leaving her bereft, wounded, and alone. When the accused is behind bars but the crimes start up again, Bryce finds herself at the heart of the investigation.

This book contains obscene/explicit sexual activities and sexual nudity; frequent/excessive profanity; graphic violence; alcohol and drug use.