HUNG SIU HO (Lee Sze Kei, Louise) and her husband KAM TAI CHO (Ha Yu) have been working hard for many years to establish a famous reputation for their Moonlight Cake Shop. However, HO discovers that CHO commits adultery with her best friend YAN HUNG (Yim, Michelle) and she breaks up with him miserably. HO brings along her children KAM WING HO (Lam, Raymond), KAM WING HING (Chen Fala) and her adopted daughter SUEN HO YUET (Yeung Yi) to set up another cake shop for a living.

HUNG moves in to live with CHO and she starts playing tricks in the family. She tries pleasing her mother-in-law SHEH KWAN LAI (Lee Heung Kam) in every ways while disuniting her stepson and CHO. Outside the family, HUNG starts expanding their business rapidly and HO's younger sister CHUNG SIU SA (Kwan Kuk Ying, Susanna) is displeased. SA decides to fight for the ownership of their cake shop's brand name in court with HUNG and their relationship with HUNG further deteriorates.

Apart from the cake shop business, HO also spends a lot of efforts on her children. Her oldest son KAM WING KA (Chan Ho, Moses) is not interested in managing the cake shop at all and he indulges himself on stock trading. He also develops an entangling relationship with his cousin LO KA MEI (Tsui Tsz Shan, Kate) and YUET at the same time. On the other hand, HO's younger son WING HO takes up the role of a father in the family and he works hard all the time to earn a living. WING HO loves his childhood friend CHAU (Chung Ka Yan) whole-heartedly but CHAU is in love with the doctor LING CHI SHUN (Wong Chung Chak).

HO works hard unconditionally to strive for the well being of her family members. HUNG, on the other hand, is a very mean person who values her own benefits only. CHO is caught between the two women all the time and he feels helpless. One day, a disaster happens at the cake shop. Here comes a time when human nature, family bonds and love are brought to a trail.