Two fifteen year old genetically identical girls living in different dimensiosn, realize that they can communicate and interact with each other through their dreams.

When a spiritual, but withdrawn fifteen year old girl
realizes she can communicate and interact with a genetically identical, but vain version of herself through dreaming
she must find a link back to reality or risk being lost in a life of depression.

theme: excessive self-centeredness leads to social withdrawal
protagonist want: Self-Centered...
protagonist need: Friend Centered...