What's the name of an old romantic film starring Kelly Chen and Dawn?

Does the landlord remember correctly? The story you told is like Sweet Honey by Dawn and Maggie Cheung!

I don't remember Kelly Chen acting in such a film.

The story introduction of Sweet Honey: In recent ten years, the most successful romantic literary film has captured the feelings of China people across the Taiwan Strait and won many awards such as the Golden Horse Award for Best Film. Ivy Ho's plays are very thoughtful. She used Teresa Teng's songs as a symbol of an era, connecting the ten-year relationship between the hero and heroine Xiaojun and Li Qiao, which made people deeply moved. They arrived in Hong Kong from the mainland on the same train 1985 and started their new lives. From acquaintance to acquaintance, from friends to lovers, it is impossible to be together all the time. Li Qiao and the victim's underworld boss Bao Ge went abroad. I thought this situation was over, but fate arranged for them to reunite on the day Teresa Teng died. The director's technique is fluent and full of emotion. Both Maggie Cheung and Ceng Zhiwei have wonderful performances, and even Dawn's performance is impressive. In addition, the film also describes the "tragedy of the times" in which Hong Kong people are busy immigrating to foreign countries and mainlanders are eager to become Hong Kong people.