The main character pretends to be a woman and he wears women's attire.
In one scene a man slaps Marysia's bottom trying to start a flirt with her but he doesn't know she's actually a man.
Some mild references to marital infidelity: in one scene a man visits Marysia's bedroom with sexual intensions but he discovers there is a man in the bed and nothing happens. Again, his wife finds out Marysia's a man and one night she wants to go to bed with him but nothing happens.