Greg Gamble: he's a teacher, he works hard, he's a husband, a father. He's a good man, or tries to be. But even a good man can face a crisis. Even a good man can face temptation. Even a good man can find himself faced with difficult choices.

Greg Gamble: he thinks he can keep his head in the game. He thinks he's trying to be good. Until he realises everyone is flawed.

And for Gamble, trying to be good just isn't enough.