Reir más es imposible: Julian Cazorla, a political leftist, is caught by his wife and her mother in adultery. The mother, determined to apply the law of retaliation ("eye for an eye and horn by horn") assures his son that his wife will deceive him with his best friend. Meanwhile, Agapito Berlinches, a right-wing politician, surprises the president of his party with a young girl in his office; Agapito mounted such a mess trying to explain the event that the press has just published that he is gay and was caught with a transvestite. when Cazorla read the press decides to introduce Berlinches as his best friend.