PhD candidate in Physics Mu Cheng He (Zhang Chao) catches third year student in English Xue Tong (Li Ting Ting) cheating on an exam. When he even becomes the substitute teacher in her elective course Russian and makes her study with him after classes, Xue Tong’s hatred for him only grows. Over time, however, Xue Tong discovers Teacher Mu’s true character and comes to secretely love him.
At the end of the 1950s, the student of the Beijing Broadcasting Institute Wen Yi Qiu (Yin Tao) falls in love with the Soviet announcer Wei Ka and marries him in Beijing. Shortly after, however, the Soviet Union decides to withdraw its specialists stationed in Beijing and Wei Ka is forced to return to his home country. Thereupon, Yi Qiu leaves for the frontier town Hehei, where she starts working as an announcer, only to be nearer to her husband. Later on, Wei Ka gets a post in Blagoveshchensk, the city at the other side of the frontier. The two find comfort in listening to each other’s broadcast attentively, while hoping for the Chinese-Soviet relationship to get better.