After Chris' famous "conscious uncoupling" from Gwyneth he is an emotional mess. But not for the reason everyone thinks. Chris will never tell anyone the true reason for his split from his wife though, he could never do that.
The only thing that gives Chris a spark of hope is writing music. But his bandmates are getting more and more worried about him as it's been months since Chris' split and he doesn't seem to get any better.
Eventually Chris' bad emotional state turns out to be a threat for the entire band.
Chris knows the only way to end his pain is to reveal the truth, but that is a really hard thing to do. After all the truth could mean the breakdown of everything that is important to him.