Lou Clark has lots of questions. Like how it is she's ended up working in an airport bar. Whether her family can ever forgive her. And will she ever get over the love of her life. What she knows for certain is that something has to change. Then it does. But does the stranger on her doorstep hold the answers Lou is searching for? Close the door and life continues: simple, ordered, safe. Open it and she risks everything. But Lou once made a promise to live. And if she's going to keep it, she has to invite them in . . .