In a middle-class family in Taipei, 39-year-old Wei Zhong (played by Richie Jen) works in an eyewear store. He has a caring wife, A Feng (played by Fan Xiaoxuan), and a lovely son. Nine years have passed like this. Wei Zhong chose to completely hide his youth, but some changes suddenly occurred when a man turned 40. First, Wei Zhong's sister Mandy (played by Xia Yuqiao) broke up with her fiancé at the engagement dinner, and this decision disrupted the pace of Wei Zhong's family; then, A Feng began to question whether she was really happy because of the dual pressure of family and work, and then wanted to solve the problem by having another child; and Wei Zhong found that he still longed for true love after meeting his old gay friend Lun Lun (played by Ke Yulun) again, and the opportunity for true love came from the day he met Thomas (played by Huang Jiale). This handsome flight attendant from Hong Kong came to Wei Zhong's store to get glasses, and the two fell in love at first sight, but as the relationship got closer, Wei Zhong struggled more. He knows that coming out again for this passion will have disastrous consequences, but he is unwilling to live his whole life like this... Following "A Page of Taipei", Taiwanese director Chen Junlin teamed up with well-known producer Li Lie to create the emotional and light film "Remember to Love Me Tomorrow", breaking through the traditional model of love movies and solving the problems of love, marriage and life for modern men and women.