The story is based on Operation Stone, during which State Security agents deliberately misled citizens of the Czechoslovak Republic who were attempting to leave the country illegally by creating fake borders and fake border patrols and interrogation teams from American, German, and French authorities. During interrogations, State Security officers convinced detainees that they had actually crossed the state border of our republic and obtained information from unsuspecting people, which was then used in criminal proceedings.

Helenka, a textile industrial student, invents an ideal man who is the envy of all her friends. The dreamy and delusional Helenka resists her complexes with an imaginary lover, her more realistic friend Zuzka would also prefer the dreamy Patrik, but in the end she will probably be happy with the less ideal Honza, and the self-confident vulgar nymphomaniac Sylva flies from one lover to another like a butterfly, finally as she was the only one waiting for her dream Patrick.