Marleen thought she was in for a dull summer until she made a new friend, wonderfully weird Rosalie. Rosalie introduced her to horror movies. But the two friends don't just go to the movies--they imagine every horrible thing they see on the screen happening to their worst enemies!
Marleen's worst enemy is Alex Kirby, who lives next door. Sure he's cute--but he loves practical jokes and embarrasses Marleen every chance he gets!
Then, one dark night, Marleen has a perfect chance to get even with Alex forever. Will she be able to go through with her spine-tingling plan? What else would you expect from. . . Marleen, the Horror Queen?