Banquet (1987)

One of the heroes has a birthday, about which invisible guests gathered at his house. They eat and drink and dance. The banquet ends with a drunken fight, in which one of the guests dies (or is crippled) (with a napkin on his chest), having received a blow from someone on the head with a bottle of champagne, and the rest of the guests scatter in panic. At the end, a telegram from the mother of the hero of the day is shown.