Milo, an ordinary teenage girl is invited to the new girl, Anna's slumber party, Anna and her family own a mansion and are very suspicious. Milo has some feelings about Damon, Anna's twin brother. After all of the pillow fights and makeovers Anna is still a bit weird, we all go scooping around her mansion and find a secret door to an older mansion behind, after 3 girls die plus 1 injured. (Guess who hasn't been with them.). "Anna?"