Despite more experienced and lauded stars, this film only really belongs to the young Australian Zen McGrath in the title role. He is "Nicholas", a young man who lives with his divorcee mother (Laura Dern) while his father (Hugh Jackman) has a new family with "Beth" (Vanessa Kirby) and baby "Theo". His mother reaches the end of her tether when it transpires that the young man has been skipping school. She feels genuinely intimidated by him and so a move to dad's is soon on the cards. Settling in ok? Going to a new school? Well that's when we begin to spot signs that this lad has problems. Sign...