A new patient mysteriously appears in a psychiatric ward. He claims to come from another planet to study humans and their behavior. The alien is gentle but criticizes humans for their harsh treatment of each other. The assigned psychiatrist is himself unhappy, and affected by the patient's insight. But he is ordered to treat the patient according to institutional procedure.

Oliveiro is a young poet living in Buenos Aires where sometimes he has to sell his ideas to an advertising agency to make a living or exchange his poems for a steak. In Montevideo, he meets a prostitute, Ana, with whom he falls in love. Back in Buenos Aires, he accepts a contract with a publicity agency to get the money for three days of love with her. Will he get what he's searching for when his ideal of love's pleasure is literally going in levitation while making love?