Zhang Zhengguang is a veritable playboy, he plays concurrently with three girls: fashionable Shen, rich Li, and arrogant lovely Zhou. Meanwhile he has an engagement contract with childhood growing up miss Ding what he has already forgotten. Ding comes to the city to see Zhengguang and runs into his dancing party. Zhengguang treats Ding as a trouble and commits her to his brother Ciming. Ciming and his wife hate to see Zhengguang's life-style and decide to help Ding to catch Zhengguang's heart.