Starting her first year as a senior, teenage girl Katherine Greene owns the whole school. Her 3 years as a high schooler has taught her to be the most popular girl, and she can get everything that she wants. Her friends are always following her lead, pushing away geeky nerds or wannabes who want to be exactly like her. However, a minor incident occurs with Katherine and her friends, giving them detention. But Katherine doesn't care, cause she can act like a bitch all the time. Nobody and nothing can stop her, even from this little incident that occurs at school. But when she starts to develop feelings for a nerdy outcast teenage boy, Katherine slowly starts to realize the actions and consequences that she's caused to other people. Feeling empathetic for the first time, she develops fully into another person and decides to become the good girl with the help from a few adults, her teachers, her family, and even her new crush.