'Trust wasn't something you could have in degrees; it was all or nothing...'

Greg and Amanda are happy. They've been together thirteen years and have two young daughters. They're very much in love.

Dan and Sarah aren't so fortunate. Their marriage is going through the motions and they're just staying together for the sake of their son.

When one bad decision sends a happy couple into turmoil and turns an unhappy couple into love's young dream, there's only one thing that can keep everything from falling apart: trust.