A group of people are trapped in a theatre and one of them is a killer.
| Actor | Role |
|---|---|
 Fernando ReyMario | Mario |
 Anna Maria FerreroMargarita | Margarita |
| PPilar CaballeroSusana | Susana |
 Lina RosalesMercedes | Mercedes |
 Pastor SerradorIgnacio | Ignacio |
 Jacques SernasEmilio | Emilio |
 Roberto CamardielAntonio | Antonio |
 Lorenzo RobledoAlberto | Alberto |
 Manuel GuitiánAmigo #1 | Amigo #1 |
 Rufino InglésAmigo #2 | Amigo #2 |