Lou Clark has a lot of questions.

Like how she's ended up working in an airport bar.

Why the flat she's owned for a year still doesn't feel like home.

Whether her family can forgive her for what she did eighteen months ago.

What Lou does know is that something has to change . . .

Then, one night, it does.

But does the stranger on her doorstep hold the answers Lou is searching for - or just more questions?

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 . . .