Three singers, who call themselves "Trio Gerimum", arrive in Rio de Janeiro trying to succeed in their artistic career. They struggle with great difficulties and even sing on the streets. Chased by the police, they accidentally end up in a television studio, where they are mistaken for northeastern deputies. Settled the misunderstanding, they are hired by a TV commercial star to fake her kidnapping to promote her theatrical debut. Confusion escalates with the arrival of a crazy general, a group of bearded revolutionaries and an outlaw.