Rebellious, quick-witted Erica Vandross is a 17-year-old firecracker residing together with her single mother, Laurie, and her mother's new boyfriend, Bob, in L.A.'s San Fernando Valley. When Bob's mentally unbalanced son, Luke, arrives from rehab to reside with the household, Erica finds her home and private life overwhelmed. With Luke and her sidekicks Kala and Claudine in tow, Erica acts out by exposing a highschool instructor's darkish secret.