Seven senior sorority sisters are soon sorry when they plan to play a pitiful prank on their house mother! Their cranky matron gets even crankier when the girls decide to hold their graduation party at the Sorority House although they know that the house mother has closed it for the summer. She catches one of the girls in bed, which raises her crankiness level to the boiling point. When the girls' revenge goes deadly wrong, however, the girls find they suddenly have more to worry about than boys and grades.