First she finds out that her boyfriend is cheating on her with the president of the Herbert Hoover High School Chastity Club. Then he’s pegged as the #1 suspect in a murder. And if that weren’t enough, now he’s depending on Hartley to clear his name. But as much as Hartley wouldn’t mind seeing him squirm, she knows he’s innocent, and she’s the only one who can help him. Along with her best friend, Sam, and the school’s resident Bad Boy, Chase, Hartley starts investigating on her own. But as the dead bodies begin to pile up, the mystery deepens, the suspects multiply, and Hartley begins to fear that she may be the killer’s next victim.

    The police. The newspapers. The girls from school who shake their heads on the six o’clock news and say they always knew there was something not quite right about me. And everyone believes it. Including you. But you don't know. You don't know who I used to be. Who I could have been.Awaiting trial at Archway Young Offenders Institution, Emily Koll is going to tell her side of the story for the first time. Heart-Shaped Bruise is a compulsive and moving novel about infamy, identity and how far a person might go to seek revenge.