Two married couples planned to dine together. However, only three of them appear on the spot at the planned hour. Besides, there is an uninvited guest, a shrewd detective who suspects that these people have something to conceal. He grows even more suspicious when the missing wife appears - walking in a strange manner and wearing a bizarre hat. She shows a beastly appetite and a purely human hunger for love. What can these faithful husbands and wives conceal from each other? How far can your closest friends go for the sake of family happiness? What can happen to a friendly dinner made of grievances and suspicions, dangers and fears, tenderness and true love?