Though the book is invigorated by the bite of authenticity, the story it unfolds is necessarily unoriginal—indeed, as Mr. Sanchez recognizes, a fear of recovery clichés is one of recovery’s major obstacles. Yet what makes this debut stand out are its fascinating philosophical qualities. While the narrator flashes back to memories of his childhood, he does not connect his addictions to some buried trauma but rather to a more general and inexplicable terror of his own mind.