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.

Josef and Miluška have been married for what seems like forever. Miluška teaches areobic and cares for her husband and teenage daughter tirelessly. Josef loves his wife, but has a weakness for younger more beautiful women. Their marriage, along with Josef's bankrupt publishing company, is slowly crumbling until aunt Marta - an experienced marital counsellor - comes to the rescue. She has a bold plan to fix not only their marriage, but also Josef’s publishing company. The prescription? Infidelity! They must catch each other out in flagranti.

At the end of the 1960s, when the air is filled with rock-and-roll and student rebellions are changing the world, the older of two brothers joins a prestigious newsroom of the public radio broadcaster. Not long after, he finds himself in the middle of a dangerous conflict between journalists and the secret service.