The main character Tonya is 16 years old, she is an excellent student, is engaged in dancing and is crazy about the main handsome boy of the school, Semyon. To please him, Tonya tries to appear older and lies that she has been dating guys for a long time. But for Semyon, a date with Tonya is just entertainment, and for Tony it's the first time. In a couple of weeks, she finds out that she is pregnant. The girl cannot admit to anyone what happened and finds herself all alone in front of the most difficult choice. Tony's classmate Mitya suddenly becomes the only one who lends a shoulder. Under the yoke of condemnation from parents and the public, the heroine will have to go through a difficult path.