In a middle-class family in Taipei, 39-year-old Weizhong (Ren Xianqi) works in an optical shop, with a sweet wife, Ah Feng (Fan Xiaoxuan) and a lovely son. After nine years like this, Weizhong chose to hide his youth completely, but suddenly there were some changes at the man's forty barrier. First of all, Weizhong's sister Mandy (Xia Yuqiao) breaks up with her fiance at the engagement dinner, a decision that disrupts the pace of the Weizhong family. Then, due to the double pressure of family work, A Feng begins to question whether she is really happy, and then wants to solve the problem by having another child. Weizhong, on the other hand, finds that he still yearns for true love after remeeting his old comrade friend Lun Lun (acted the role of Ke Yulun), and the opportunity for true love comes from the day he met Thomas (Huang Jiale). The handsome man from Hong Kong seldom went to Weizhong's store to wear glasses. The two fell in love at first sight, but the closer the relationship became, the more Weizhong struggled. He knew the consequences of coming out again for this passion would be unimaginable, but he was not willing to live like this for the rest of his life. Taiwan director Chen Junlin joined hands with well-known producer Li Li to create an emotional light film "remember to fall in Love with me tomorrow" after one Page of Taipei.