Blum and Elza conduct Scientific and anthropological researches in a desert island, where they use as subjects a old fisherman, the house keeper and a prostitute from the country. But the affection grows between the three of them, and this feelings are capable of compromising the whole research.
| Actor | Role |
|---|---|
 Paulo César PeréioNot listed | Not listed |
 Ruth de SouzaNot listed | Not listed |
 Claudioney PenedoNot listed | Not listed |
| VValentim AndersonNot listed | Not listed |
 Rodolfo ArenaNot listed | Not listed |
 Maria Lúcia DahlNot listed | Not listed |
 Otávio AugustoNot listed | Not listed |
 Nildo ParenteNot listed | Not listed |
 Wilson GreyNot listed | Not listed |
 Jacyra SilvaNot listed | Not listed |
| MMarilisse NavarroNot listed | Not listed |
| MMargot MorelNot listed | Not listed |
| NNewton CoutoNot listed | Not listed |
| RRamon AraujoNot listed | Not listed |
| TTania KukelNot listed | Not listed |
| SSonia MattosNot listed | Not listed |
| JJoão FernandesNot listed | Not listed |
| FFábio HamiltonNot listed | Not listed |
| JJoão Marcos FuentesNot listed | Not listed |
| HHernandes FlorNot listed | Not listed |
| FFrancisco SantosNot listed | Not listed |
| OOrdália AparecidaNot listed | Not listed |
| GGerusa AmaralNot listed | Not listed |
| CCecília de PaulaNot listed | Not listed |
| DDalmo PeresNot listed | Not listed |
| RRosane SoliNot listed | Not listed |
 Altair LimaNot listed | Not listed |