Sheng Ruxi (Shu Qi) is a 30-year-old high-quality single white-collar woman. At the same time of successful career, love life is blank, which has become a topic of constant concern for family and friends. The same thing happened to Sheng Ruxi's good friends Wang Lan (Hao Lei) and Zhang Yu (Xiong Dailin). In such a situation that "old age is a leftover woman", facing the balance between career and love, the decline of social status brought about by the increase of age, emotional closeness, who is urging her parents and friends to get married, various blind date objects and customized love that she can't put into, these three working women bravely expressed their unique emotional attitudes.

However, with the appearance of the company's new colleague Marseille (played by Eddie Peng Yuyan Yuyan), the sudden love began to subtly affect Sheng Ruxi's life. Sheng Ruxi and Marseille experienced a series of events with tears in their laughter. Marseille, which is really young, makes Sheng Ruxi feel very excited in the process of little contact. However, how to deal with this much younger male subordinate has become an "impossible task" for Sheng Ruxi. Finally, Sheng Ruxi went through a hundred turns and thousands of times, finally recognized himself, boldly expressed himself and gained a complete life.