The show follows seven women. They are between the ages of 21 and 27. They live in a big house for three months. The production team video tapes their lives in and out of the house. The girls are called "bad girls". This is because of their bad behavior. However, they are put in the show because they want to change their "bad ways". They also want to become role models to young women. Other "bad girls" are only there to reach goals of their own. In the show, the "bad girls" must try to live with each other. They must also try and deal with a lot of changes from their roommates. They must follow all the rules that they were given. If they break a "bad girl" breaks a rule, she will be removed from the show. A "replacement" is then brought in. A replacement is a "bad girl" who did not enter the house on the first night. She is brought in the show, to fill in. This is because the show is about seven women trying to change. The "bad girls" have to talk in a room about their day.