Chapter 27 deftly pilots us into the dark psyche of Mark DavidChapman the weekend before the December 8, 1980, shooting.Inspired by Chapman's recollections, and propelled by a haunting,tour-de-force performance from Jared Leto, the film unravels theweb of literary associations and cultural signs through which Chapman processes the world as he releases his grip on reality. Neither celebrating nor sensationalizing, Chapter 27 explores a figure whose psychological mechanisms we can interpret but never fully penetrate, raising the question, can we ever really know another person's interior experience?