This is a film about change. In the spring of 2004, three young men, Xin'er, Xiu'er and Shasha, have to undergo a sex change operation in Changchun to transform themselves into the women they have longed for. Another clue is that in the process of Xinyi's and Xiu'er's "butterfly transformation", a bridge in Changchun, built during the period of the Manchus, is also blown to pieces by a violent means - demolition. It was blown to smithereens. A new bridge was quickly built on the same site. In today's world, both individual people and society as a whole sometimes use the most violent and bloody means to transform themselves, perhaps for the sole purpose of looking good..