Můžeš mi odpustit? (1982)

In the hall of the Central Station, by a coincidence of unpleasant circumstances, the couple meet. They were both supposed to be somewhere else at the time. She at training, he at home. But they both have somewhat illegitimate interests. She's waiting for an admirer, he's accompanying his girlfriend to a cottage. A diplomatic duel ensues, so as not to reveal more than necessary...