A group of people are trapped in a theatre and one of them is a killer.

---

Main Cast: Fernando Rey, Anna Maria Ferrero, Pilar Caballero, Lina Rosales, Pastor Serrador, Jacques Sernas, Roberto Camardiel, Lorenzo Robledo, Manuel Guitián, Rufino Inglés

Director: Arturo Ruiz Castillo

Writer: Arturo Ruiz Castillo

Editor: Rosa G. Salgado

Cinematographer:

---

Popular Double Features