After a fall, intelligent young Plácido becomes a little slow. As an adult he works at a bank and his keen intelligence returns when he drinks the soft drink "Super Plá". Other side stories include the love relationship between Baby Stompanato and Joana Martini, and the life of Majô Prado, a neurotic millionairess and prominent personality living in São Paulo.
Bráulio Pedroso
Plácido
Titina
Joana Martini
Baby Stompanato
Madame Majô Prado Menezes
Jonas Jazão (J. J.)
Dr. Werneck
Lucy
Alfredo Thompson
Argemiro
Frau Guilhermina
Pepita