Fifteen year-old Xian goes to live with her father while her mother, a doctor, takes a job in Africa. Soon, she becomes fascinated by her father's stepdaughter, a swaggering, liberated and slightly melancholic young woman.

The cook gets fired because of fighting. Then he accompanies his girlfriend, the waitress, to have her physical examination at hospital. Throughout the course of the day, they discover both crisis and strength in their relationship through these two sudden dramas.