Amethyst Rose follows Officer Rose Davis, a dedicated small-town cop whose life is shattered after she responds to a disturbance call and discovers a woman's body marked with a single purple rose. Soon after, Rose is violently attacked, left with mysterious wounds and no memory of what happened. As she recovers, strange changes begin to take hold: heightened senses, unnatural strength, and a hunger she can't explain.
Driven to uncover the truth, Rose finds herself pulled into a hidden world of dark rituals, cryptic symbols, and a chilling pattern of death. As the clues close in around her, she realizes this is no ordinary case, and she may not be entirely human anymore. Caught between who she was and what she's becoming, Rose must fight to stop a darkness that's been waiting just for her.