The film is about the playwright J.M. Barrie who created the masterpiece "Peter Pan" after befriending the Davies family and playing with the children to escape from reality. Barrie grew close with the family as he struggled for ideas for his next play. Through interacting with the Davies children and creating fantasy worlds with them, Barrie found inspiration for the story of Peter Pan. The film explores the relationships between Barrie and the Davies family as they helped each other cope with the challenges of real life through imagination and fantasy.