How well do you know your girlfriend?

How well do you know your lover?

How well do you know yourself?

Daniel and Victoria are together. They're trying for a baby. Ruby is in prison, convicted of assault on an abusive partner.

But when Daniel joins a pen pal program for prisoners, he and Ruby make contact. At first the messages are polite, neutral - but soon they find themselves revealing more and more about themselves. Their deepest fears, their darkest desires.

And then, one day, Ruby comes to find Daniel. And now he must decide who to choose - and who to trust.