单纯的果园女孩丽芙遇上气质跳脱的安德里亚，在背德相恋、与男友分手、与安德里亚闹矛盾这一系列风波后，丽芙终于明确了自我身份，安德里亚也找到了心之所属正是丽芙，一个幸福的花园故事～

　　An uplifting and heartwarming story about finding the magic of Christmas, no matter where you might be, This Is Christmas follows Adam (Alfred Enoch) and Emma (Kaya Scodelario) as they make their daily commute from the picture-perfect village of Langton to London for work. Every day they share their journey with the same characters, but they all keep themselves to themselves. But then one day, in the build-up to Christmas, Adam breaks the unwritten rule of travel and starts talking to the strangers on the train, inviting the whole carriage to hold their own Christmas party.