In the 21st century, man arrives on Mars, where he discovers that there was life. Later, through a television program, details of the Red Planet are discovered, after being invaded by humans.

It is the story of Ernesto Ramponi, a man who lost his penis and tries to get it back.

During a period of political upheaval, three friends, later to be joined by the fourth, Pimpi, a Peronist youth activist, rent a place in Mar de Ajó for three summers to set up a disco.