Happiness has a formula
- IMDB Rating： 4.8
- Actors：Gui Yalei, Dong Yong, Huang Jue, Liu Yihan, Shu Yan, Zhao Ziqi, Liu Wenzhi, Xu Huanshan, Li Chang
Summary：Retired teacher Song Yuhua and his wife Shen Ligeng are able to teach their children well. The three children they have trained are working hard outside, and their career has been successful. Since the death of her wife, Song Yuhua has been unable to adapt to the lonely and depressed life of "going out with a lock and entering with a lamp". Shen Yue, the son, felt guilty for failing to see her father on the last side of his expedition abroad. He took her to Hangzhou for filial piety. However, Xu Li, his daughter-in-law, was careful in calculating matters and struggled with each other, and her mother-in-law and daughter-in-law were in constant conflict. Shen Mei, the eldest daughter in Shanghai, concealed her mother's divorce and remarriage and lost the right to support her children, while Shen Xiang, the daring daughter, dared to love and hate, dared to pursue her former brother-in-law Chai Haiqing, which caused conflicts between mother, daughter and sister. At the birthday banquet, the children were absent for some reason, the mother lost face in front of her relatives and friends, gambled to be a babysitter, and a report of "empty nesters leaving home to be babysitters" aroused public opinion, which made the children crazy. Shen Yue saw that his father-in-law was angry with his son. He felt guilty that his son wanted to be raised but could not wait for him. He decided to abandon the promotion from abroad and stay with his mother. Shen Mei was divorced again because of domestic violence, and she was haggard and found uremia. Former husband Chai Haiqing donated kidneys to rescue each other, and they were reunited. Shen Xiang finally found his love and made TV programs for the elderly. In the filial piety of her children, the mother actively faces life and enjoys every day of her life.