Fifteen-year-old "Baby" Anderson never thought much about her nickname, until she goes for her driver's permit and discovers her parents just flat-out forgot to name her. As if being in high school wasn't enough of an identity crisis. As the fifth kid of her trashy, abusive mother and her barely-there father, home has never been a sanctuary. Cheerleading, the hot football player Derek Mottola, and her crazy cousin Kaia, are Baby's escape from the reality of her messed-up life. She vows to keep her toxic family a secret, but as she tries on new identities and navigates the social ups and downs of her sophomore year, her two worlds collide.