Based on the book of the same name by literary powerhouse Ottessa Moshfegh, Eileen follows a peculiar young woman whose dreary life stretches on toward unending misery. In frigid 1960s Boston, Eileen (Thomasin McKenzie) shuffles between her father’s dingy, emotionally haunted home and the prison where she works alongside colleagues who have ostracized her. When an intoxicating woman (Anne Hathaway) joins the prison staff, Eileen is taken. Just when the possibility of a salvational friendship (or maybe more) takes…