This is a cruel story about class imprisonment and desperate love. It tells the story of childhood sweethearts Shen Lan and Xiao Ran, from their pure love when they were studying abroad in the foggy city to the tragedy of being forced to separate and living in different dimensions even though they are in the same city. Due to family pressure and hidden illness, Xiao Ran went into self-exile with drugs and alcohol in an unfinished building; Shen Lan committed suicide through overeating, vomiting and fake social interactions in the luxurious Crystal Palace. When the hustle and bustle of the twenty-fifth birthday party and the dead silence of the unfinished building faced each other at both ends of the glass curtain wall, the broken pearl necklace became the final farewell - he withered away in decay, and she also died in extreme loneliness. Only in the silent smoke of death could these two souls like "a mirror and a moon in the water" truly reunite.
