Ember Fullbuster is your average fifteen-year-old girl. It's the first day of school and a strange boy appears at her front door, saying that she is a werewolf and will have her first shift this full moon. During their conversation, she discovers that he is a werewolf himself. Ember brushes him off, thinking that he is just pranking her, she goes to school as normal, but the day of the full moon, she begins seeing strange things. Her head pounds and she gets a high fever. Her vision fades into a red glow. She gets sent home from school. But when the full moon rises, her life will never be the same again.