Heath and Vanner are trying hard to keep their family together without giving away their secrets, but when Heath's friend Lucy barges in on them making love, it seems that everything is going to be exposed. But before they can come to terms with Lucy knowing not only about their relationship, but about their sister Marybeth as well, they find out that someone else knows about Marybeth, someone who isn't a friend. Can they rescue Marybeth without exposing themselves further?