A playwright boasts he can commit a perfect crime in front of his friends, a police chief, a physician and a theater owner. Later, when the playwright's wife disappears, foul play is suspected. Did he murder her?
| Actor | Role |
|---|---|
 Susana CamposArlette | Arlette |
 Carlos EstradaJean | Jean |
 Roberto CamardielComisario Serge Dupont | Comisario Serge Dupont |
 Ángel PicazoHenry | Henry |
 José BódaloDr. Víctor Lepetre | Dr. Víctor Lepetre |
 Carlos BallesterosInspector Jules Rodin | Inspector Jules Rodin |
 Irán EoryFranca | Franca |
| MMaría Luisa PonteMujer en la comisera | Mujer en la comisera |
 José María CaffarelDirector | Director |
 Erasmo PascualHombre en la comisera | Hombre en la comisera |
 María José AlfonsoChica besucona | Chica besucona |
 Manuel PeiróCamarero | Camarero |
 Vicente BañóGendarme | Gendarme |
 Rufino InglésNot listed | Not listed |
| AAlfonso de CórdobaNot listed | Not listed |
| EElena BalduqueNot listed | Not listed |
 María SaavedraNot listed | Not listed |
 Pepe MartínNot listed | Not listed |
 CharoNot listed | Not listed |