It is said that loyalty and trust are important bonds to maintain a marriage, but Ludford (Bolek Polívka) thinks this is nonsense. In his view of marriage, infidelity and cheating can not only increase the fun in marriage, but also create a sense of crisis for his wife, making the relationship between the two full of interest because of the sense of crisis. I don't know whether it is coincidence or luck, Ludford, who has implemented this set of "perverse logic", has always had a happy marriage, which makes him believe that he is right. Ludford's daughter Alice (Petra Hrebícková) is about to enter the marriage hall with a man named Andrew (Jirí Machácek). What makes Ludford disappointed is that Andrew actually intends to be a "model husband" in the eyes of ordinary people. The anxious Ludford decides to start with his daughter, hoping that Alice can learn from him and learn his way to maintain a marriage.