Paris, winter, 1999. Fifteen-year-old Camille and 19-year-old Sullivan are passionately in love with each other. However Sullivan wants to go to South American. Sullivan leaves at the end of summer.
2003. Camille focuses on her architecture studies. She meets a famous architect, Lorenz, who nutures her self-confidence. She falls in love with him.
2007. Camille and Lorenz are a stable couple. Camille is his assistant, but she soon feels capable of establishing her own agency. It is at this point that she once again crosses paths with Sullivan.