At the end of the 19th century, Joseph Ferdinand Cheval (Jacques Gamblin), is a simple postman who travels every day along the Drôme, from village to village. Alone, he is upset when he meets the woman of his life, Philomena (Laetitia Casta). From their union Alice was born. For this child he loves more than anything, Cheval then throws himself into a crazy gamble: to build her with his own hands, an incredible palace. Never spared by the ordeals of life, this ordinary man will not give up and will devote 33 years to build an extraordinary work: "The Ideal Palace".

身体残疾的朱利安整日生活离不开轮椅，但他却有着一颗冒险的心。为了实现这个梦想，朱利安和父亲参加了尼斯铁人三项赛。在备赛过程中，他们克服了常人难以想象的困难。一家人也在此过程中加强了彼此的感情……