Will women be different when they are thirty? Are they getting old or mature? Do they prefer staying alone or with love? Do they get lost in routine life or grow up? This drama tries to explain how modern women, represented by the three with distinctive personalities, become different from what they were before the age of thirty. The three women were schoolmates in a college. Intimate and resembling each other, they gave their own answers to the challenges to a thirty-year-old woman: family, career, love and herself, and mirror the new status, new problems, new way of thinking and new attitude of Chinese women in a new era. I’m thirty, that’s all.