Wong Ka-Nam disappeared to the United States, leaving behind her son and husband in Hong Kong. When her husband dies in an airplane accident looking for her, Wong Ka-Nam's son, Luk Chit is taken into the custody of her mother-in-law, Ng Hang. After eighteen long years, Wong Ka-Nam wishes to see her son again and returns to Hong Kong. However, she is met with adamant resistance from her mother-in-law, who views Ka-Nam as bad luck, blaming her for the death of her son. Highly protective of her grandson and fearing that Wong Ka-Nam will attempt to take him away, Ka Nam's mother-in-law does everything in her power to keep mother and son apart. However, Wong Ka-Nam is ironically assisted by her own son, who befriends her and secures her office job in his advertising agency.
| Title | Best Selling Secrets |
|---|---|
| Subtitle Available |
 ETC.
|
| Alternative Titles | 同事三分亲, 嫲辣甜孫, Hot, Sweet and Sour |
| First Air Date | 2007-03-12 |
| Last Air Date | 2008-07-31 |
| Number of Episodes | 364 |
| Number of Seasons | 1 |
| Genres | Comedy, |
| Networks | TVB Jade, |
| Casts | Esther Kwan Wing-Ho, Vin Choi, Stephen Au Kam-Tong, Alvina Kong Yan-Yin, Yoyo Chen Chi-Yiu, Shek Sau, Wong Cho-Lam, Elaine Jin Yan-Ling, Wayne Lai Yiu-Cheung, Angela Tong Ying-Ying, Florence Kwok Siu-Wan |
| Plot Keywords | , |
