An unscrupulous doctor carries out all kinds of deceptions to profit from his clinic at the expense of his patients and his exploited employees.

Trelles and Amílcar share a room in a boarding house, the rent of which has not been paid for a long time. Trelles is a waiter in a typical Buenos Aires bar while Amilcar is an amateur bolero singer, who divides his time between sleeping and singing for free in a cabaret.

A biopic based on the life of one of the pioneer argentine rock stars 'Tanguito'. The movie tells the story of his rise and fall from grace, encompassed in violent times of a military regime.