Young Adult tells the story of 37-year-old Mavis Gary – a pathologically unhappy, immature, egotistical girl in a grown woman's body. Upon hearing of her ex-boyfriend's new born baby, she decides that they are still meant for each other, and the fact that he is now happily married to The Perfect Woman is but a minor detail on their road to eternal …

The premiss is that Charlize Theron ("Mavis Gary") is an erstwhile successful novelist, now divorced, borderline alcoholic and bored. She heads back to her home town in Minnesota to catch up with her parents - and, more importantly, to hook up with her now married ex-boyfriend, who now has a baby... When she arrives, she initially meets up with the…