Mario and Colate are a couple of friends who live in a small town. They share a dream: to travel to Madrid to form a musical group. Their arrival in a Madrid in cultural and social turmoil is accompanied by two drawbacks: they have no money and no record label is interested in their proposal. Gradually, however, they gradually get ahead. They get a job in a bar, "El 33", and meet a couple of nice musicians: Chakas and Guillermo. Together they form ""Rulé"", a group with which they win a contest that allows them to record their first single. Mario will know love at first sight when he meets María, a young actress. Colate, on the other hand, will get to know the dark world of drugs.

Alan Estrada
as Mario

María León
as María

Carlos Fonseca
as Colate

Carmen Sarahí
as Ana

Rogelio Suárez
as Chakas

David Carrillo
as Guillermo

Jorge D'Alessio
as Venancio

María Elisa Gallegos
as Patricia

Alma Cero
as Malena