Show to Zero (2006)

Obscure Ah Nian film. Doctor Li Hong has a husband and a daughter in high school -- this looks like a happy family, but in fact, Li's marriage is in name only. Li's husband has confessed that he has a lover, and Li has suffered through and coped with it. After Li's daughter finds this out, she decides that she wants to save her parents' marriage...by jumping off the building.