 Her underachieving and unreliable sister Norah (Emily Blunt) lives with their father Joe (Alan Arkin), and is fired from her job as a waitress.Rose's hyperactive and disruptive 8-year-old son Oscar (Jason Spevack) upsets his school officials by his erratic behavior, and they order Rose to put him on medication or send him to a private school.Unable to make enough money with her current job, Rose asks Mac (Steve Zahn), her ex-boyfriend during their high school years and her married lover, for advice.