Goodreads comments here. Here is the synopsis from Barnes and Noble.
Maddie Temple finds her life spiraling out of control as the mental link she shares with her twin sister pushes her closer and closer toward madness and her only hope for redemption lies with a psychiatrist who could end her career.
You can pick up a copy from most ebook sites, but the only place giving it away right now is Barnes and Noble. You can pick it up here.