A Sigh tells the story of an affair between a struggling Chinese screenwriter and his young female assistant, its effects on his marriage and the impact on the man himself.
| Actor | Role |
|---|---|
 Xu FanSong Xiaoying | Song Xiaoying |
 Zhang GuoliLiang Yazhou | Liang Yazhou |
 Liu BeiLi Xiaodan | Li Xiaodan |
 Fu BiaoLiu Dawei | Liu Dawei |