The movie "Twins" tells the story of Li Pin (Liu Haoran), a student at an art school, who got a one-month part-time job by chance. The job content is to paint a portrait of Tao (Chen Duling), a girl who is about to celebrate her birthday. For this, he came to a remote mansion. The two young people who had never met each other became attached, and a youthful encounter began. However, in the process of getting along day and night, Li Pin gradually discovered that there seemed to be some unknown secrets hidden in this house, and the relationship between him and Tao gradually became subtle.