The Contract (1980)
The events take place in a villa of a wealthy doctor on the occasion of the family wedding. The young couple agreed on their vows before the civil authorities but the girl backs out during the church ceremony because a young man is an egoist not interested in having children and is only career oriented. An aging relative of the family, a former star ballerina, comes to Warsaw for the wedding with her daughter. The two do not get along well. The party begins to degenerate in the church when the bride walks off with the groom in angry pursuit. The rest retire to the villa to celebrate anyway. They start with naked party in the sauna. Deals are made on the side between corrupt officials. In the end the son is taken to the hospital because of attempted suicide.