Troubled teen Jillian is taken in by the well-respected family of her best friend, Melanie. When Melanie dies after a long illness, Jillian discovers that Melanie's mom might not be "The Good Mother" we think she is. Now Melanie's younger sister is showing similar symptoms. Jillian must find out the truth and face the fact that the only mother figure she has ever known just might be a murderer.