Anaïs and Emma have been best friends since childhood. It's a friendship is filmed over the years, during a period when their physical, emotional and intellectual development is dramatic. Emma and Anaïs are best friends and yet everything in their life seems to set them apart, their social backgrounds but also their personalities. From the age of thirteen to eighteen, Adolescentes follows the two teenagers during these years where radical transformations and first times punctuate daily life. Through their personal stories, the film offers a rare portrait of France and its recent history.