Young and extremely talented dancer Yulya Olshanskaya from a small mining town draws a “happy ticket”: she is noticed by a former ballet dancer Pototsky and he promises her a future of great ballerina, worthy of the main stage of the country. However, in order to become a diamond, anyone, even the most outstanding brilliant, needs to be cut, and the way to the legendary stage of The Bolshoi Theatre for Yulya lies through the walls of the ballet school, where the more capricious teacher Galina Mikhailovna Beletskaya takes custody of the rebellious provincial. Turning into a prima will require incredible self-denial, and Yulya herself will have to make sure that the big ballet is not only the whiteness of the packs, the gold of the boxes and the slip of silk ribbons. But no obstacles will stop the one who has the big dream.