"A group of people are trapped in a theatre and one of them is a killer."
Fernando Rey
as Mario
Anna Maria Ferrero
as Margarita
Pilar Caballero
as Susana
Lina Rosales
as Mercedes
Pastor Serrador
as Ignacio
Jacques Sernas
as Emilio
Roberto Camardiel
as Antonio
Lorenzo Robledo
as Alberto
Manuel Guitián
as Amigo #1
Rufino Inglés
as Amigo #2
Rosa G. Salgado
Editor
Arturo Ruiz Castillo
Director
Writer
