When Charlene Bowman's parents take on a teenage houseguest for a month, she doesn't expect much to change for her that summer. But Brian arrives early on a Saturday morning, handsome and confident, throwing Charlene's world into turmoil. Discovering he has a girlfriend, Charlene tries to appear sophisticated and makes up a nonexistent boyfriend. Too embarrassed to tell him the truth afterwards, she consults her best friend Orla who suggests they find a candidate to play the part. A search ensues and hope is found in Nathan, a boy in their year, who appears to need their help as much as they need his. Could Charlene be about to learn a lesson in life and love?