a movie about a killer killing all the prom queens

Donna's senior prom is supposed to be the best night of her life, though a sadistic killer from her past has different plans for her and her friends.

At a high school senior prom, a masked killer stalks four teenagers who were responsible for the accidental death of a classmate six years prior.

When five sorority girls inadvertently cause the murder of one of their sisters in a prank gone wrong, they agree to keep the matter to themselves and never speak of it again, so they can get on with their lives. This proves easier said than done, when after graduation a mysterious killer goes after the five of them and anyone who knows their secret.

When the senior sorority sisters of Theta Pi decide to do in their demented house mother, someone seeks revenge, and begins a night of terror and madness.