A realistic, audacious and uncompromising film about young people and the problem, still valid even today, of growing up, sexually and psychologically. An intelligent and important voice in the discussion about sex, adulthood and responsibility. The authenticity of the story was emphasized by hiring debutants for the main roles, who at the time of filming were themselves at the age of the characters depicted in the film. For this reason, the underage Hanna Wolska had a double who replaced her in erotic scenes. The only cinema production ever made by Zygmunt Hübner, a great actor, teacher and theater director.