Mandy

Evie, a small town teenage girl, is about as plain as it gets. Emo, lonely, adopted, and dating the school bad boy, she doesn't have many friends that aren't her boyfriend's. Well, none, to be precise. Her adoptive parents both vanish one night, so she is forced to go to her creepy, old, great grandmothers house in Pennsylvania. Because she is a minor, she has no choice. When she arrives, she doesn't leave her room for two days. One night, her grandmother tells her that she is not to go into the last door on the top floor. Of course, as any other person would do, she goes to investigate. What scarring secrets lie behind the forbidden door? How safe is Evie? Will she survive?

Also, who is the mysterious Mandy? Or, who was she?