Du is a baby products' salesman whose fiancee Jenny isn't happy with the size of the diamond on the engagement ring he offers on his birthday; meanwhile Tian finds her rock star boyfriend Chen Wei drinking with another girl. Jenny slaps Du inspiring Tian to slap Chen Wei who in turn slaps Tian back leaving two relationships on the rocks in double-quick time. Taking Tian to a more suitable place to cry, the nearest funeral parlour, the couple not only hit it off big time but end married the very next morning. But married bliss only lasts two months before battle lines are literally drawn with yellow tape around their apartment when their pride doesn't permit them to announce the breakup to family and friends. And when Du's mother arrives unexpectedly their acting skills are put to the test...