Christina and Adam have always had a complicated relationship. As the sister of Adam's band mate and best friend, she was supposed to be untouchable—off limits. But after their first drunken night together, Adam didn't give a damn about the "rules".

When their secret is suddenly brought to the forefront, Adam and Christina have to decide if what they have is as simple as "friends with benefits". For one of them, it isn't, and hasn't been for years. But is it worth risking everything for?