The focus is on a 20-something couple with unspecified learning difficulties, Olinka (Kateřina Holánová) and Standa (Jan Budař), who are preparing to have sex for the first time.

Standa has been receiving advice from his brother Jarda (Martin Pechlát), while Olinka has been given tips and guidance by her friends, the women who live in her apartment block.

In the same pub are Jaroslava (Ivana Uhlířová), a young woman who habitually attracts unpleasant men, and her current partner Richard (Marek Daniel), a pretentious and self-absorbed man who is tempted by sexual experimentation and submission.

At the house, Olinka is horrified to see her controlling mother return unexpectedly to the flat.

After having sex, Olinka excitedly tells her friends what happened, but at the same time her mother wakes up and sees Standa dancing in his underwear through the keyhole.