Rhapsody of Happiness

幸福狂想曲

Also known as Happiness Rhapsody, Xing fu kuang xiang qu, Happiness Capriccio

Wang, a bankrupt farmer joins his cousin, Wu, in Shanghai, but finds that he is poor too. One day, Wu stops a woman - Zhang, a drug runner - from being run down by a car, and is hospitalized. During his recovery, Wu slims down due to the amount of drugs he is prescribed, which inspires him to create and sell a weight loss medicine.