A gentle girl born and brought up amidst the ever growing eco-social-consumeristic environment finds it difficult to fit in the society. She decides to take it hard on the people. What she does is the rest of the story.

大学生林见清（井柏然 饰）与同乡方小晓（周冬雨 饰）在春运的火车上相识，两个北漂青年开始了共同的奋斗生活。东北小城的除夕夜、中关村的电脑配件城、下雪的北京街道、地下通道的小贩、出租屋的各色租客都见证了他们的喜怒哀愁，在情感…