At the academy, several beautiful juniors form a sorority of Cassidy, Jessica, Claire, and Ellieand Megan, a few girls happily play crazy after sworn in, but don't want a seemingly innocuous prank that directly leads to Megan's accidental death. Thinking of the prison disaster and future shattering that everyone will suffer after this incident is exposed, the girls decided to find a place to hide Megan's body, and agreed to keep this secret forever.
On the eve of graduation, as they prepare to say goodbye to the sorority and each other, the last girl plans to hold an alcohol-fueled sorority practice, hoping to bury those dark secrets. However, when the party was held, the girls of the sorority received videos of killing Meghan threatened one after another, and the girls and their trusted boyfriends were killed one by one
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