A girl who is engaged leaves the nightclub where she works. On her way home, she is the only witness of a horrible murder. Unfortunately for her, the killer has seen her. Since then, her life starts to turn into a real nightmare, because the killer is determined to eliminate her.
| Actor | Role |
|---|---|
 May HeatherlyLaura Berke | Laura Berke |
 Virgílio TeixeiraEsteban Ruiz | Esteban Ruiz |
 Luis MarínMan in the Yellow Shoes | Man in the Yellow Shoes |
 Jesús PuenteConductor | Conductor |
 María VicoYvonne | Yvonne |
| GGeorge RigaudInspector Rojas | Inspector Rojas |
 José RiesgoRicardo | Ricardo |
 Paco MoránHombre de la sortija | Hombre de la sortija |
| ÁÁngela PlaÁgueda | Águeda |
 Rafaela AparicioModista cotilla | Modista cotilla |
| LLuisa Rosa de la TorreEstrella | Estrella |
 Rafael HernándezGuardia en bar | Guardia en bar |
| EEmilio García DomenechNot listed | Not listed |
| RRafael IbáñezNot listed | Not listed |
| AAgustín ZaragozaSacristán | Sacristán |
 Aníbal Vela Jr.Amigo de Esteban y Ricardo | Amigo de Esteban y Ricardo |
| MMaría PinarNot listed | Not listed |
| IIgnacio GimenoNot listed | Not listed |
| AAntonio Gómez DelgadoNot listed | Not listed |
| AAlberto MontañaNot listed | Not listed |
| MMercedes PirisNot listed | Not listed |
| IIndalecio DíazNot listed | Not listed |