Heart of Greed (2007)

When Ling Hau (Louise Lee) is diagnosed with terminal cancer, she urges her husband Tong Yan Gai (Ha Yu) to be happy and find a new wife. However, his new mistress Wong Sau Kam (Susanna Kwan) is dedicated to bringing nothing but misery upon the household. After driving Yan Gai to his demise, Sau Kam leverages her children in a greedy scheme to wrench the family fortune from the rightful Tong heirs. With the help of a promising young lawer, can the Tong siblings restore order in their home?