Millennials experience first love and discover their emerging identities in this teen drama told partly through texts, chats and social media posts.

The series revolves around the lives of Ukrainian teenagers in a secondary school class. The teenagers struggle with bullying, including the Blue Whale Challenge, lack of parental support, suicidal behavior, LGBT identity crises-a subject that is rarely portrayed on Ukrainian television-alcoholic parents, and speech disabilities. In one of the show's main plot lines, the main characters are stalked on the Internet by an anonymous person who pretends to be their friend.