Young dentist Si Song and his girlfriend Lili fell in love for many years, be regarded as a heaven-made match. But Lili is a workaholic, she has been delayed and division loose marriage; Su Xiaobei is a department store window designer, although she like her new colleagues-Jack, and Jack like her,too. but Jack had a long and painful experience of love, he can't untie the knot. Si Song and Xiaobei every struggle for life and love, although they shared the same view of life, full of passion for life, caring for family and friends, but always missed each other! After they have experienced the frustration of love and work, they have a new experience to life, and also to find each other in the vast sea of humanity!