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.
After the theft of his motorcycle, Lucio bums aimlessly around Buenos Aires drifting from one arcade and record store to the next, indulging in short chats with friends and, more often, setting out onto the streets alone.
Two rival families of different origin join the force by the love of two young. The journalist Ariel Cohen falls in love for Carla Rosi, while investigating his father, Giancarlo, a wealthy shady business that is congressional candidate with presidential aspirations.
