As the youngest of the five Walsh girls, Helen has had a tough time finding her way in the world-- at thirty-three, she has her job as a private investigator that has proven less than fruitful and after losing her flat, she' s moved back in with Mammy Walsh. Her hunky new boyfriend, Artie, and his three adorable children are a great distraction, but his beautiful ex-wife lives a little too close for comfort. Meanwhile, Helen runs into her ex-boyfriend...