In Sao Paulo , young Sergio works in a bank in which her rich uncle is the president. Using his name to borrow money, Sergio takes a wasteful life frequenting nightclubs and dating the sophisticated starlet 's revues Margo. His uncle refuses to pay the loans and Sergio finds himself in difficulties that lead down a dark path.
| Directing | Flaminio Bollini | Director |
| Writing | Flaminio Bollini | Writer |
| Writing | Alinor Azevedo | Writer |
| Writing | Fabio Carpi | Writer |
| Writing | José Renato | Writer |
| Writing | Maurício Vasques | Writer |
| Crew | Vitorio Cusani | Supervisor of Production Resources |
| Production | Pio Piccinini | Producer |
| Sound | Enrico Simonetti | Music |
| Crew | H.E. Fowle | Cinematography |
| Editing | Edith Hafenrichter | Editor |
| Editing | Oswald Hafenrichter | Editor |
| Art | Tulio Costa | Set Decoration |
| Directing | Galileu Garcia | Assistant Director |
| Costume & Make-Up | Valerie Fletcher | Makeup Artist |