Charming bon vivant Rudolf is convinced that infidelity is the basis for a happy marriage, since, after all, a woman does not want to be bored with her partner.

Two families, Sebkovi and Krausovi, are celebrating christmas, but not everyone is in a good mood. Teenage kids think their fathers are totaly stupid, fathers are sure their children are nothing more than rebels, hating anything they say. Written by Antonín