Somebody is selling songs for two recording companies, simultaneously. The owner of one of them hires a detective to find out the swindler's identity. But the private-eye is clumsy, and messes things up even more.
| Actor | Role |
|---|---|
| AAnkitoLeovigildo "Coruja" | Leovigildo "Coruja" |
 Maria VidalAurora | Aurora |
 Nancy WanderleyIolanda | Iolanda |
 Aurélio TeixeiraSecundino | Secundino |
| PPitucaTerrinha | Terrinha |
 Humberto CatalanoTancredo | Tancredo |
| DDarcy CoriaGilda | Gilda |
| FFrancisco DantasDr.Ranulfo | Dr.Ranulfo |
 Wilson GreyNot listed | Not listed |
 Ângela MariaNot listed | Not listed |
| GGermano MathiasNot listed | Not listed |
 MarleneNot listed | Not listed |
| EEdinhoTrio Irakitan | Trio Irakitan |
| GGilTrio Irakitan | Trio Irakitan |
| JJoãozinhoTrio Irakitan | Trio Irakitan |
| JJorge VeigaNot listed | Not listed |
 Virgínia LaneNot listed | Not listed |
| ZZé BacurauNot listed | Not listed |