Narciso Ibáñez Serrador	...	(Director)
Narciso Ibáñez Serrador, Juan José Plans	...	(Writer)
Lewis Fiander	...	Tom
Prunella Ransome	...	Evelyn
Antonio Iranzo	...	Padre
Miguel Narros	...	Guardacostas 1
María Luisa Arias	...	(as Mª Luisa Arias)
Marisa Porcel	...	Brit van der Holden
Juan Cazalilla	...
Luis Ciges	...	Enrique Amorós
Antonio Canal	...
Aparicio Rivero	...
Fabián Conde	...	Empleado
Andrés Gómez	...
Maria Druille	...	Niños (as María Druille)
Lourdes de la Cámara	...	Niños
Roberto Nauta	...	Niños
Fabi·n Conde	...	Camera shop clerk
Javier De La Camara	...	Child (Leader)
Cristina Torres	...	Child
Adela Blanco	...	Child
Julio Jes˙s Parra	...	Child
Juan Antonio Balandín	...	Child
Narciso Ib·Òez Serrador	...	Man next to bus
Lourdes De La Camara	...	Child (Lourdes)
José Luis Romero	...	Child
Mari·n Salgado	...	Child
Luis Maleas	...	Child
Juan Carlos Romero	...	Child
Carlos Parra	...	Child
Pedro Balandín	...	Child
Jes˙s Nieto	...	Tom
José Luis Alcaine	...	Cinematographer
Antonio Ramírez de Loaysa	...	Editor
Juan Serra	...	Editor
Andrès Gomez	...	(as Andrés Gómez)

Summary: A couple of English tourists rent a boat to visit the fictitious island of Almanzora, just off the southern Spanish coast. When they arrive, they find the town deserted of adults, there's only children who don't speak but stare at them with eerie smiles. They soon discover that all the children of the island have been posessed by a mysterious force or madness which they can pass from one to another, and which makes them attack and murder their elders, who can't defend themselves because nobody dares to kill a child...