Happy Christmas (R)

synopsis

A budding novelist and her film director husband, Kelly and Jeff and their two-year-old son live a peaceful existence in Chicago. But when Jeff's irresponsible younger sister, Jenny, comes to live with them after a breakup, things start to change. Jenny begins a rocky relationship with a baby sitter-cum-pot dealer, and she and a friend, Carson, instigate an evolution in Kelly's life, as her career and her relationship with her husband begin to grow in new directions. But are they welcome ones?