Mr. Postman is a gritty, coming-of-age drama about Samuel, a 35 year old postman who lives at home with his elderly mother with whom he maintains an unusual relationship. Shy and awkward, he has not learned how to socialise with others. His daily life is characterised by a monotonous routine of work and familial obligations. When Hannah and her young daughter, Chloe, enter his life his world is turned upside down and he finds within himself the confidence to change his old habits and take control of his life.