Cat is lost to himself and everyone around him until another hospitalization introduces him to nurse David Simms. David takes Cat’s silence in stride, caring for him without pushing and slowly building Cat’s trust. As their love grows, Cat begins to let go of his vows one by one, only holding onto the silence.
Despite how far he’s come, the severity of Cat’s panic attacks threaten to undo everything David has built with him. Cat’s only hope is to break the final vow and tell the truth about the night of his attack. When David fails to keep a promise he made to be there for him, Cat has to stand on his own and prove to himself he’s strong enough to survive.